Home / 138,964.52-191,770.26-75,302.30

Finding the Fourth Proportional to 138,964.52, 191,770.26 and 75,302.30

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Solution

The fourth proportional to 138,964.52, 191,770.26 and 75,302.30 is: 103,916.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,964.52 : 191,770.26 = 75,302.30 : x
  2. Step 2: Convert to fraction form
    138,964.52/191,770.26 = 75,302.30/x
  3. Step 3: Cross multiply
    138,964.52x = 191,770.26 × 75,302.30
  4. Step 4: Simplify right side
    138,964.52x = 14,440,741,649.60
  5. Step 5: Solve for x
    x = 14,440,741,649.60/138,964.52
  6. Step 6: Final answer
    x = 103,916.75

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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.