Home / 187,974.18-259,403.85-107,426.70

Finding the Fourth Proportional to 187,974.18, 259,403.85 and 107,426.70

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Solution

The fourth proportional to 187,974.18, 259,403.85 and 107,426.70 is: 148,248.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,974.18 : 259,403.85 = 107,426.70 : x
  2. Step 2: Convert to fraction form
    187,974.18/259,403.85 = 107,426.70/x
  3. Step 3: Cross multiply
    187,974.18x = 259,403.85 × 107,426.70
  4. Step 4: Simplify right side
    187,974.18x = 27,866,899,572.80
  5. Step 5: Solve for x
    x = 27,866,899,572.80/187,974.18
  6. Step 6: Final answer
    x = 148,248.55

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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.