Home / 138,989.14-191,805.18-75,326.92

Finding the Fourth Proportional to 138,989.14, 191,805.18 and 75,326.92

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Solution

The fourth proportional to 138,989.14, 191,805.18 and 75,326.92 is: 103,951.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,989.14 : 191,805.18 = 75,326.92 : x
  2. Step 2: Convert to fraction form
    138,989.14/191,805.18 = 75,326.92/x
  3. Step 3: Cross multiply
    138,989.14x = 191,805.18 × 75,326.92
  4. Step 4: Simplify right side
    138,989.14x = 14,448,093,449.45
  5. Step 5: Solve for x
    x = 14,448,093,449.45/138,989.14
  6. Step 6: Final answer
    x = 103,951.24

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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.