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Finding the Fourth Proportional to 133,402.55, 200,029.98 and 54,572.15

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Solution

The fourth proportional to 133,402.55, 200,029.98 and 54,572.15 is: 81,828.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,402.55 : 200,029.98 = 54,572.15 : x
  2. Step 2: Convert to fraction form
    133,402.55/200,029.98 = 54,572.15/x
  3. Step 3: Cross multiply
    133,402.55x = 200,029.98 × 54,572.15
  4. Step 4: Simplify right side
    133,402.55x = 10,916,066,073.06
  5. Step 5: Solve for x
    x = 10,916,066,073.06/133,402.55
  6. Step 6: Final answer
    x = 81,828.02

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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.