Home / 101,830.20-152,857.06-80,904.76

Finding the Fourth Proportional to 101,830.20, 152,857.06 and 80,904.76

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Solution

The fourth proportional to 101,830.20, 152,857.06 and 80,904.76 is: 121,445.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,830.20 : 152,857.06 = 80,904.76 : x
  2. Step 2: Convert to fraction form
    101,830.20/152,857.06 = 80,904.76/x
  3. Step 3: Cross multiply
    101,830.20x = 152,857.06 × 80,904.76
  4. Step 4: Simplify right side
    101,830.20x = 12,366,863,753.61
  5. Step 5: Solve for x
    x = 12,366,863,753.61/101,830.20
  6. Step 6: Final answer
    x = 121,445.93

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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.