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Finding the Fourth Proportional to 133,233.86, 183,856.92 and 72,801.65

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Solution

The fourth proportional to 133,233.86, 183,856.92 and 72,801.65 is: 100,463.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,233.86 : 183,856.92 = 72,801.65 : x
  2. Step 2: Convert to fraction form
    133,233.86/183,856.92 = 72,801.65/x
  3. Step 3: Cross multiply
    133,233.86x = 183,856.92 × 72,801.65
  4. Step 4: Simplify right side
    133,233.86x = 13,385,087,139.92
  5. Step 5: Solve for x
    x = 13,385,087,139.92/133,233.86
  6. Step 6: Final answer
    x = 100,463.10

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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.