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Finding the Fourth Proportional to 142,035.88, 212,891.98 and 88,752.52

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Solution

The fourth proportional to 142,035.88, 212,891.98 and 88,752.52 is: 133,027.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,035.88 : 212,891.98 = 88,752.52 : x
  2. Step 2: Convert to fraction form
    142,035.88/212,891.98 = 88,752.52/x
  3. Step 3: Cross multiply
    142,035.88x = 212,891.98 × 88,752.52
  4. Step 4: Simplify right side
    142,035.88x = 18,894,699,712.79
  5. Step 5: Solve for x
    x = 18,894,699,712.79/142,035.88
  6. Step 6: Final answer
    x = 133,027.65

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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.