Home / 129,916.20-194,777.10-70,818.60

Finding the Fourth Proportional to 129,916.20, 194,777.10 and 70,818.60

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Solution

The fourth proportional to 129,916.20, 194,777.10 and 70,818.60 is: 106,174.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,916.20 : 194,777.10 = 70,818.60 : x
  2. Step 2: Convert to fraction form
    129,916.20/194,777.10 = 70,818.60/x
  3. Step 3: Cross multiply
    129,916.20x = 194,777.10 × 70,818.60
  4. Step 4: Simplify right side
    129,916.20x = 13,793,841,534.06
  5. Step 5: Solve for x
    x = 13,793,841,534.06/129,916.20
  6. Step 6: Final answer
    x = 106,174.92

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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.