Home / 152,990.70-229,406.82-68,678.24

Finding the Fourth Proportional to 152,990.70, 229,406.82 and 68,678.24

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Solution

The fourth proportional to 152,990.70, 229,406.82 and 68,678.24 is: 102,981.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,990.70 : 229,406.82 = 68,678.24 : x
  2. Step 2: Convert to fraction form
    152,990.70/229,406.82 = 68,678.24/x
  3. Step 3: Cross multiply
    152,990.70x = 229,406.82 × 68,678.24
  4. Step 4: Simplify right side
    152,990.70x = 15,755,256,641.60
  5. Step 5: Solve for x
    x = 15,755,256,641.60/152,990.70
  6. Step 6: Final answer
    x = 102,981.79

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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.