Home / 138,627.41-191,306.28-74,965.66

Finding the Fourth Proportional to 138,627.41, 191,306.28 and 74,965.66

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Solution

The fourth proportional to 138,627.41, 191,306.28 and 74,965.66 is: 103,452.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,627.41 : 191,306.28 = 74,965.66 : x
  2. Step 2: Convert to fraction form
    138,627.41/191,306.28 = 74,965.66/x
  3. Step 3: Cross multiply
    138,627.41x = 191,306.28 × 74,965.66
  4. Step 4: Simplify right side
    138,627.41x = 14,341,401,542.34
  5. Step 5: Solve for x
    x = 14,341,401,542.34/138,627.41
  6. Step 6: Final answer
    x = 103,452.86

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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.