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Finding the Fourth Proportional to 133,117.92, 183,700.28 and 72,686.92

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Solution

The fourth proportional to 133,117.92, 183,700.28 and 72,686.92 is: 100,306.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,117.92 : 183,700.28 = 72,686.92 : x
  2. Step 2: Convert to fraction form
    133,117.92/183,700.28 = 72,686.92/x
  3. Step 3: Cross multiply
    133,117.92x = 183,700.28 × 72,686.92
  4. Step 4: Simplify right side
    133,117.92x = 13,352,607,556.34
  5. Step 5: Solve for x
    x = 13,352,607,556.34/133,117.92
  6. Step 6: Final answer
    x = 100,306.61

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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.