Home / 252,123.28-347,930.20-137,401.96

Finding the Fourth Proportional to 252,123.28, 347,930.20 and 137,401.96

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Solution

The fourth proportional to 252,123.28, 347,930.20 and 137,401.96 is: 189,614.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,123.28 : 347,930.20 = 137,401.96 : x
  2. Step 2: Convert to fraction form
    252,123.28/347,930.20 = 137,401.96/x
  3. Step 3: Cross multiply
    252,123.28x = 347,930.20 × 137,401.96
  4. Step 4: Simplify right side
    252,123.28x = 47,806,291,423.19
  5. Step 5: Solve for x
    x = 47,806,291,423.19/252,123.28
  6. Step 6: Final answer
    x = 189,614.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.