Home / 142,029.76-212,841.57-104,293.78

Finding the Fourth Proportional to 142,029.76, 212,841.57 and 104,293.78

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Solution

The fourth proportional to 142,029.76, 212,841.57 and 104,293.78 is: 156,291.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,029.76 : 212,841.57 = 104,293.78 : x
  2. Step 2: Convert to fraction form
    142,029.76/212,841.57 = 104,293.78/x
  3. Step 3: Cross multiply
    142,029.76x = 212,841.57 × 104,293.78
  4. Step 4: Simplify right side
    142,029.76x = 22,198,051,876.43
  5. Step 5: Solve for x
    x = 22,198,051,876.43/142,029.76
  6. Step 6: Final answer
    x = 156,291.55

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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.