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Finding the Fourth Proportional to 142,034.88, 212,890.48 and 88,751.52

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Solution

The fourth proportional to 142,034.88, 212,890.48 and 88,751.52 is: 133,026.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,034.88 : 212,890.48 = 88,751.52 : x
  2. Step 2: Convert to fraction form
    142,034.88/212,890.48 = 88,751.52/x
  3. Step 3: Cross multiply
    142,034.88x = 212,890.48 × 88,751.52
  4. Step 4: Simplify right side
    142,034.88x = 18,894,353,693.53
  5. Step 5: Solve for x
    x = 18,894,353,693.53/142,034.88
  6. Step 6: Final answer
    x = 133,026.15

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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.