Home / 317,780.27-476,670.23-81,122.86

Finding the Fourth Proportional to 317,780.27, 476,670.23 and 81,122.86

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Solution

The fourth proportional to 317,780.27, 476,670.23 and 81,122.86 is: 121,684.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,780.27 : 476,670.23 = 81,122.86 : x
  2. Step 2: Convert to fraction form
    317,780.27/476,670.23 = 81,122.86/x
  3. Step 3: Cross multiply
    317,780.27x = 476,670.23 × 81,122.86
  4. Step 4: Simplify right side
    317,780.27x = 38,668,849,545.49
  5. Step 5: Solve for x
    x = 38,668,849,545.49/317,780.27
  6. Step 6: Final answer
    x = 121,684.24

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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.