Home / 102,354.49-153,531.74-39,981.25

Finding the Fourth Proportional to 102,354.49, 153,531.74 and 39,981.25

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Solution

The fourth proportional to 102,354.49, 153,531.74 and 39,981.25 is: 59,971.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,354.49 : 153,531.74 = 39,981.25 : x
  2. Step 2: Convert to fraction form
    102,354.49/153,531.74 = 39,981.25/x
  3. Step 3: Cross multiply
    102,354.49x = 153,531.74 × 39,981.25
  4. Step 4: Simplify right side
    102,354.49x = 6,138,390,679.97
  5. Step 5: Solve for x
    x = 6,138,390,679.97/102,354.49
  6. Step 6: Final answer
    x = 59,971.88

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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.