Home / 175,436.44-242,084.13-129,520.52

Finding the Fourth Proportional to 175,436.44, 242,084.13 and 129,520.52

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Solution

The fourth proportional to 175,436.44, 242,084.13 and 129,520.52 is: 178,724.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,436.44 : 242,084.13 = 129,520.52 : x
  2. Step 2: Convert to fraction form
    175,436.44/242,084.13 = 129,520.52/x
  3. Step 3: Cross multiply
    175,436.44x = 242,084.13 × 129,520.52
  4. Step 4: Simplify right side
    175,436.44x = 31,354,861,749.65
  5. Step 5: Solve for x
    x = 31,354,861,749.65/175,436.44
  6. Step 6: Final answer
    x = 178,724.91

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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.