Home / 138,914.32-191,702.27-75,251.96

Finding the Fourth Proportional to 138,914.32, 191,702.27 and 75,251.96

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Solution

The fourth proportional to 138,914.32, 191,702.27 and 75,251.96 is: 103,847.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,914.32 : 191,702.27 = 75,251.96 : x
  2. Step 2: Convert to fraction form
    138,914.32/191,702.27 = 75,251.96/x
  3. Step 3: Cross multiply
    138,914.32x = 191,702.27 × 75,251.96
  4. Step 4: Simplify right side
    138,914.32x = 14,425,971,553.95
  5. Step 5: Solve for x
    x = 14,425,971,553.95/138,914.32
  6. Step 6: Final answer
    x = 103,847.98

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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.