Home / 129,260.13-194,071.85-66,125.54

Finding the Fourth Proportional to 129,260.13, 194,071.85 and 66,125.54

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Solution

The fourth proportional to 129,260.13, 194,071.85 and 66,125.54 is: 99,281.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,260.13 : 194,071.85 = 66,125.54 : x
  2. Step 2: Convert to fraction form
    129,260.13/194,071.85 = 66,125.54/x
  3. Step 3: Cross multiply
    129,260.13x = 194,071.85 × 66,125.54
  4. Step 4: Simplify right side
    129,260.13x = 12,833,105,064.24
  5. Step 5: Solve for x
    x = 12,833,105,064.24/129,260.13
  6. Step 6: Final answer
    x = 99,281.23

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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.