Home / 115,737.24-159,721.94-67,990.17

Finding the Fourth Proportional to 115,737.24, 159,721.94 and 67,990.17

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Solution

The fourth proportional to 115,737.24, 159,721.94 and 67,990.17 is: 93,829.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,737.24 : 159,721.94 = 67,990.17 : x
  2. Step 2: Convert to fraction form
    115,737.24/159,721.94 = 67,990.17/x
  3. Step 3: Cross multiply
    115,737.24x = 159,721.94 × 67,990.17
  4. Step 4: Simplify right side
    115,737.24x = 10,859,521,853.33
  5. Step 5: Solve for x
    x = 10,859,521,853.33/115,737.24
  6. Step 6: Final answer
    x = 93,829.11

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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.