Home / 99,781.50-149,696.91-29,660.52

Finding the Fourth Proportional to 99,781.50, 149,696.91 and 29,660.52

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Solution

The fourth proportional to 99,781.50, 149,696.91 and 29,660.52 is: 44,498.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,781.50 : 149,696.91 = 29,660.52 : x
  2. Step 2: Convert to fraction form
    99,781.50/149,696.91 = 29,660.52/x
  3. Step 3: Cross multiply
    99,781.50x = 149,696.91 × 29,660.52
  4. Step 4: Simplify right side
    99,781.50x = 4,440,088,192.99
  5. Step 5: Solve for x
    x = 4,440,088,192.99/99,781.50
  6. Step 6: Final answer
    x = 44,498.11

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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.