Home / 138,839.66-191,598.86-75,177.30

Finding the Fourth Proportional to 138,839.66, 191,598.86 and 75,177.30

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Solution

The fourth proportional to 138,839.66, 191,598.86 and 75,177.30 is: 103,744.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,839.66 : 191,598.86 = 75,177.30 : x
  2. Step 2: Convert to fraction form
    138,839.66/191,598.86 = 75,177.30/x
  3. Step 3: Cross multiply
    138,839.66x = 191,598.86 × 75,177.30
  4. Step 4: Simplify right side
    138,839.66x = 14,403,884,977.88
  5. Step 5: Solve for x
    x = 14,403,884,977.88/138,839.66
  6. Step 6: Final answer
    x = 103,744.74

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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.