Home / 129,861.66-194,854.16-89,942.06

Finding the Fourth Proportional to 129,861.66, 194,854.16 and 89,942.06

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Solution

The fourth proportional to 129,861.66, 194,854.16 and 89,942.06 is: 134,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,861.66 : 194,854.16 = 89,942.06 : x
  2. Step 2: Convert to fraction form
    129,861.66/194,854.16 = 89,942.06/x
  3. Step 3: Cross multiply
    129,861.66x = 194,854.16 × 89,942.06
  4. Step 4: Simplify right side
    129,861.66x = 17,525,584,549.97
  5. Step 5: Solve for x
    x = 17,525,584,549.97/129,861.66
  6. Step 6: Final answer
    x = 134,955.80

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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.