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Finding the Fourth Proportional to 96,484.76, 133,230.12 and 72,569.78

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Solution

The fourth proportional to 96,484.76, 133,230.12 and 72,569.78 is: 100,207.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,484.76 : 133,230.12 = 72,569.78 : x
  2. Step 2: Convert to fraction form
    96,484.76/133,230.12 = 72,569.78/x
  3. Step 3: Cross multiply
    96,484.76x = 133,230.12 × 72,569.78
  4. Step 4: Simplify right side
    96,484.76x = 9,668,480,497.77
  5. Step 5: Solve for x
    x = 9,668,480,497.77/96,484.76
  6. Step 6: Final answer
    x = 100,207.33

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1.5x scale

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.