Home / 99,257.91-136,920.45-60,990.87

Finding the Fourth Proportional to 99,257.91, 136,920.45 and 60,990.87

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Solution

The fourth proportional to 99,257.91, 136,920.45 and 60,990.87 is: 84,133.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,257.91 : 136,920.45 = 60,990.87 : x
  2. Step 2: Convert to fraction form
    99,257.91/136,920.45 = 60,990.87/x
  3. Step 3: Cross multiply
    99,257.91x = 136,920.45 × 60,990.87
  4. Step 4: Simplify right side
    99,257.91x = 8,350,897,366.29
  5. Step 5: Solve for x
    x = 8,350,897,366.29/99,257.91
  6. Step 6: Final answer
    x = 84,133.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.