Home / 129,263.55-193,890.31-66,082.94

Finding the Fourth Proportional to 129,263.55, 193,890.31 and 66,082.94

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Solution

The fourth proportional to 129,263.55, 193,890.31 and 66,082.94 is: 99,121.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,263.55 : 193,890.31 = 66,082.94 : x
  2. Step 2: Convert to fraction form
    129,263.55/193,890.31 = 66,082.94/x
  3. Step 3: Cross multiply
    129,263.55x = 193,890.31 × 66,082.94
  4. Step 4: Simplify right side
    129,263.55x = 12,812,841,314.74
  5. Step 5: Solve for x
    x = 12,812,841,314.74/129,263.55
  6. Step 6: Final answer
    x = 99,121.85

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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.