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Finding the Fourth Proportional to 157,320.20, 217,107.14 and 89,340.20

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Solution

The fourth proportional to 157,320.20, 217,107.14 and 89,340.20 is: 123,292.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,320.20 : 217,107.14 = 89,340.20 : x
  2. Step 2: Convert to fraction form
    157,320.20/217,107.14 = 89,340.20/x
  3. Step 3: Cross multiply
    157,320.20x = 217,107.14 × 89,340.20
  4. Step 4: Simplify right side
    157,320.20x = 19,396,395,309.03
  5. Step 5: Solve for x
    x = 19,396,395,309.03/157,320.20
  6. Step 6: Final answer
    x = 123,292.47

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