Home / 129,892.60-194,450.10-115,895.80

Finding the Fourth Proportional to 129,892.60, 194,450.10 and 115,895.80

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Solution

The fourth proportional to 129,892.60, 194,450.10 and 115,895.80 is: 173,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,892.60 : 194,450.10 = 115,895.80 : x
  2. Step 2: Convert to fraction form
    129,892.60/194,450.10 = 115,895.80/x
  3. Step 3: Cross multiply
    129,892.60x = 194,450.10 × 115,895.80
  4. Step 4: Simplify right side
    129,892.60x = 22,535,949,899.58
  5. Step 5: Solve for x
    x = 22,535,949,899.58/129,892.60
  6. Step 6: Final answer
    x = 173,496.80

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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.