Home / 187,711.32-259,045.79-107,137.18

Finding the Fourth Proportional to 187,711.32, 259,045.79 and 107,137.18

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Solution

The fourth proportional to 187,711.32, 259,045.79 and 107,137.18 is: 147,851.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,711.32 : 259,045.79 = 107,137.18 : x
  2. Step 2: Convert to fraction form
    187,711.32/259,045.79 = 107,137.18/x
  3. Step 3: Cross multiply
    187,711.32x = 259,045.79 × 107,137.18
  4. Step 4: Simplify right side
    187,711.32x = 27,753,434,248.17
  5. Step 5: Solve for x
    x = 27,753,434,248.17/187,711.32
  6. Step 6: Final answer
    x = 147,851.68

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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.