Home / 424,721.38-637,082.03-109,178.58

Finding the Fourth Proportional to 424,721.38, 637,082.03 and 109,178.58

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Solution

The fourth proportional to 424,721.38, 637,082.03 and 109,178.58 is: 163,767.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,721.38 : 637,082.03 = 109,178.58 : x
  2. Step 2: Convert to fraction form
    424,721.38/637,082.03 = 109,178.58/x
  3. Step 3: Cross multiply
    424,721.38x = 637,082.03 × 109,178.58
  4. Step 4: Simplify right side
    424,721.38x = 69,555,711,378.92
  5. Step 5: Solve for x
    x = 69,555,711,378.92/424,721.38
  6. Step 6: Final answer
    x = 163,767.86

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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.