Home / 119,505.27-164,915.90-65,789.21

Finding the Fourth Proportional to 119,505.27, 164,915.90 and 65,789.21

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Solution

The fourth proportional to 119,505.27, 164,915.90 and 65,789.21 is: 90,788.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,505.27 : 164,915.90 = 65,789.21 : x
  2. Step 2: Convert to fraction form
    119,505.27/164,915.90 = 65,789.21/x
  3. Step 3: Cross multiply
    119,505.27x = 164,915.90 × 65,789.21
  4. Step 4: Simplify right side
    119,505.27x = 10,849,687,107.49
  5. Step 5: Solve for x
    x = 10,849,687,107.49/119,505.27
  6. Step 6: Final answer
    x = 90,788.35

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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.