Home / 102,305.28-152,864.88-80,065.92

Finding the Fourth Proportional to 102,305.28, 152,864.88 and 80,065.92

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Solution

The fourth proportional to 102,305.28, 152,864.88 and 80,065.92 is: 119,634.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,305.28 : 152,864.88 = 80,065.92 : x
  2. Step 2: Convert to fraction form
    102,305.28/152,864.88 = 80,065.92/x
  3. Step 3: Cross multiply
    102,305.28x = 152,864.88 × 80,065.92
  4. Step 4: Simplify right side
    102,305.28x = 12,239,267,252.89
  5. Step 5: Solve for x
    x = 12,239,267,252.89/102,305.28
  6. Step 6: Final answer
    x = 119,634.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.