Home / 144,854.20-217,022.10-89,385.40

Finding the Fourth Proportional to 144,854.20, 217,022.10 and 89,385.40

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Solution

The fourth proportional to 144,854.20, 217,022.10 and 89,385.40 is: 133,918.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,854.20 : 217,022.10 = 89,385.40 : x
  2. Step 2: Convert to fraction form
    144,854.20/217,022.10 = 89,385.40/x
  3. Step 3: Cross multiply
    144,854.20x = 217,022.10 × 89,385.40
  4. Step 4: Simplify right side
    144,854.20x = 19,398,607,217.34
  5. Step 5: Solve for x
    x = 19,398,607,217.34/144,854.20
  6. Step 6: Final answer
    x = 133,918.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.