Home / 138,740.26-191,462.92-75,079.42

Finding the Fourth Proportional to 138,740.26, 191,462.92 and 75,079.42

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Solution

The fourth proportional to 138,740.26, 191,462.92 and 75,079.42 is: 103,610.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,740.26 : 191,462.92 = 75,079.42 : x
  2. Step 2: Convert to fraction form
    138,740.26/191,462.92 = 75,079.42/x
  3. Step 3: Cross multiply
    138,740.26x = 191,462.92 × 75,079.42
  4. Step 4: Simplify right side
    138,740.26x = 14,374,924,985.11
  5. Step 5: Solve for x
    x = 14,374,924,985.11/138,740.26
  6. Step 6: Final answer
    x = 103,610.34

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1.5x scale

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.