Home / 158,085.18-218,165.54-93,591.43

Finding the Fourth Proportional to 158,085.18, 218,165.54 and 93,591.43

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Solution

The fourth proportional to 158,085.18, 218,165.54 and 93,591.43 is: 129,160.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,085.18 : 218,165.54 = 93,591.43 : x
  2. Step 2: Convert to fraction form
    158,085.18/218,165.54 = 93,591.43/x
  3. Step 3: Cross multiply
    158,085.18x = 218,165.54 × 93,591.43
  4. Step 4: Simplify right side
    158,085.18x = 20,418,423,851.95
  5. Step 5: Solve for x
    x = 20,418,423,851.95/158,085.18
  6. Step 6: Final answer
    x = 129,160.90

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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.