Home / 153,150.12-211,316.18-89,475.60

Finding the Fourth Proportional to 153,150.12, 211,316.18 and 89,475.60

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Solution

The fourth proportional to 153,150.12, 211,316.18 and 89,475.60 is: 123,458.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,150.12 : 211,316.18 = 89,475.60 : x
  2. Step 2: Convert to fraction form
    153,150.12/211,316.18 = 89,475.60/x
  3. Step 3: Cross multiply
    153,150.12x = 211,316.18 × 89,475.60
  4. Step 4: Simplify right side
    153,150.12x = 18,907,641,995.21
  5. Step 5: Solve for x
    x = 18,907,641,995.21/153,150.12
  6. Step 6: Final answer
    x = 123,458.23

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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.