Home / 187,045.88-258,123.31-102,163.14

Finding the Fourth Proportional to 187,045.88, 258,123.31 and 102,163.14

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Solution

The fourth proportional to 187,045.88, 258,123.31 and 102,163.14 is: 140,985.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,045.88 : 258,123.31 = 102,163.14 : x
  2. Step 2: Convert to fraction form
    187,045.88/258,123.31 = 102,163.14/x
  3. Step 3: Cross multiply
    187,045.88x = 258,123.31 × 102,163.14
  4. Step 4: Simplify right side
    187,045.88x = 26,370,687,601.39
  5. Step 5: Solve for x
    x = 26,370,687,601.39/187,045.88
  6. Step 6: Final answer
    x = 140,985.13

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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.