Home / 153,154.75-211,322.55-89,480.23

Finding the Fourth Proportional to 153,154.75, 211,322.55 and 89,480.23

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Solution

The fourth proportional to 153,154.75, 211,322.55 and 89,480.23 is: 123,464.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,154.75 : 211,322.55 = 89,480.23 : x
  2. Step 2: Convert to fraction form
    153,154.75/211,322.55 = 89,480.23/x
  3. Step 3: Cross multiply
    153,154.75x = 211,322.55 × 89,480.23
  4. Step 4: Simplify right side
    153,154.75x = 18,909,190,378.19
  5. Step 5: Solve for x
    x = 18,909,190,378.19/153,154.75
  6. Step 6: Final answer
    x = 123,464.60

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Find fourth proportional to 153,155.75, 211,323.93 and 89,481.23
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.