Home / 102,354.65-153,531.97-39,981.41

Finding the Fourth Proportional to 102,354.65, 153,531.97 and 39,981.41

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Solution

The fourth proportional to 102,354.65, 153,531.97 and 39,981.41 is: 59,972.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,354.65 : 153,531.97 = 39,981.41 : x
  2. Step 2: Convert to fraction form
    102,354.65/153,531.97 = 39,981.41/x
  3. Step 3: Cross multiply
    102,354.65x = 153,531.97 × 39,981.41
  4. Step 4: Simplify right side
    102,354.65x = 6,138,424,640.68
  5. Step 5: Solve for x
    x = 6,138,424,640.68/102,354.65
  6. Step 6: Final answer
    x = 59,972.11

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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.