Home / 129,680.60-194,520.98-40,943.16

Finding the Fourth Proportional to 129,680.60, 194,520.98 and 40,943.16

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Solution

The fourth proportional to 129,680.60, 194,520.98 and 40,943.16 is: 61,414.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,680.60 : 194,520.98 = 40,943.16 : x
  2. Step 2: Convert to fraction form
    129,680.60/194,520.98 = 40,943.16/x
  3. Step 3: Cross multiply
    129,680.60x = 194,520.98 × 40,943.16
  4. Step 4: Simplify right side
    129,680.60x = 7,964,303,607.50
  5. Step 5: Solve for x
    x = 7,964,303,607.50/129,680.60
  6. Step 6: Final answer
    x = 61,414.77

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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.