Home / 153,151.12-211,317.56-89,476.60

Finding the Fourth Proportional to 153,151.12, 211,317.56 and 89,476.60

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Solution

The fourth proportional to 153,151.12, 211,317.56 and 89,476.60 is: 123,459.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,151.12 : 211,317.56 = 89,476.60 : x
  2. Step 2: Convert to fraction form
    153,151.12/211,317.56 = 89,476.60/x
  3. Step 3: Cross multiply
    153,151.12x = 211,317.56 × 89,476.60
  4. Step 4: Simplify right side
    153,151.12x = 18,907,976,789.10
  5. Step 5: Solve for x
    x = 18,907,976,789.10/153,151.12
  6. Step 6: Final answer
    x = 123,459.61

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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.