Home / 187,591.78-258,901.32-107,000.80

Finding the Fourth Proportional to 187,591.78, 258,901.32 and 107,000.80

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Solution

The fourth proportional to 187,591.78, 258,901.32 and 107,000.80 is: 147,675.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,591.78 : 258,901.32 = 107,000.80 : x
  2. Step 2: Convert to fraction form
    187,591.78/258,901.32 = 107,000.80/x
  3. Step 3: Cross multiply
    187,591.78x = 258,901.32 × 107,000.80
  4. Step 4: Simplify right side
    187,591.78x = 27,702,648,361.06
  5. Step 5: Solve for x
    x = 27,702,648,361.06/187,591.78
  6. Step 6: Final answer
    x = 147,675.17

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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.