Home / 99,129.29-148,702.50-28,052.73

Finding the Fourth Proportional to 99,129.29, 148,702.50 and 28,052.73

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Solution

The fourth proportional to 99,129.29, 148,702.50 and 28,052.73 is: 42,081.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,129.29 : 148,702.50 = 28,052.73 : x
  2. Step 2: Convert to fraction form
    99,129.29/148,702.50 = 28,052.73/x
  3. Step 3: Cross multiply
    99,129.29x = 148,702.50 × 28,052.73
  4. Step 4: Simplify right side
    99,129.29x = 4,171,511,082.83
  5. Step 5: Solve for x
    x = 4,171,511,082.83/99,129.29
  6. Step 6: Final answer
    x = 42,081.52

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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.