Home / 187,123.16-258,226.92-102,238.40

Finding the Fourth Proportional to 187,123.16, 258,226.92 and 102,238.40

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Solution

The fourth proportional to 187,123.16, 258,226.92 and 102,238.40 is: 141,087.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,123.16 : 258,226.92 = 102,238.40 : x
  2. Step 2: Convert to fraction form
    187,123.16/258,226.92 = 102,238.40/x
  3. Step 3: Cross multiply
    187,123.16x = 258,226.92 × 102,238.40
  4. Step 4: Simplify right side
    187,123.16x = 26,400,707,137.73
  5. Step 5: Solve for x
    x = 26,400,707,137.73/187,123.16
  6. Step 6: Final answer
    x = 141,087.33

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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.