Home / 138,793.25-191,534.46-75,131.30

Finding the Fourth Proportional to 138,793.25, 191,534.46 and 75,131.30

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Solution

The fourth proportional to 138,793.25, 191,534.46 and 75,131.30 is: 103,681.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,793.25 : 191,534.46 = 75,131.30 : x
  2. Step 2: Convert to fraction form
    138,793.25/191,534.46 = 75,131.30/x
  3. Step 3: Cross multiply
    138,793.25x = 191,534.46 × 75,131.30
  4. Step 4: Simplify right side
    138,793.25x = 14,390,232,016.93
  5. Step 5: Solve for x
    x = 14,390,232,016.93/138,793.25
  6. Step 6: Final answer
    x = 103,681.07

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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.