Home / 187,660.81-258,962.28-102,761.47

Finding the Fourth Proportional to 187,660.81, 258,962.28 and 102,761.47

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Solution

The fourth proportional to 187,660.81, 258,962.28 and 102,761.47 is: 141,805.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,660.81 : 258,962.28 = 102,761.47 : x
  2. Step 2: Convert to fraction form
    187,660.81/258,962.28 = 102,761.47/x
  3. Step 3: Cross multiply
    187,660.81x = 258,962.28 × 102,761.47
  4. Step 4: Simplify right side
    187,660.81x = 26,611,344,567.35
  5. Step 5: Solve for x
    x = 26,611,344,567.35/187,660.81
  6. Step 6: Final answer
    x = 141,805.55

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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.