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Finding the Fourth Proportional to 187,990.80, 259,337.88 and 112,524.72

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Solution

The fourth proportional to 187,990.80, 259,337.88 and 112,524.72 is: 155,230.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,990.80 : 259,337.88 = 112,524.72 : x
  2. Step 2: Convert to fraction form
    187,990.80/259,337.88 = 112,524.72/x
  3. Step 3: Cross multiply
    187,990.80x = 259,337.88 × 112,524.72
  4. Step 4: Simplify right side
    187,990.80x = 29,181,922,332.39
  5. Step 5: Solve for x
    x = 29,181,922,332.39/187,990.80
  6. Step 6: Final answer
    x = 155,230.59

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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.