Home / 187,074.28-258,158.34-102,191.72

Finding the Fourth Proportional to 187,074.28, 258,158.34 and 102,191.72

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Solution

The fourth proportional to 187,074.28, 258,158.34 and 102,191.72 is: 141,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,074.28 : 258,158.34 = 102,191.72 : x
  2. Step 2: Convert to fraction form
    187,074.28/258,158.34 = 102,191.72/x
  3. Step 3: Cross multiply
    187,074.28x = 258,158.34 × 102,191.72
  4. Step 4: Simplify right side
    187,074.28x = 26,381,644,796.94
  5. Step 5: Solve for x
    x = 26,381,644,796.94/187,074.28
  6. Step 6: Final answer
    x = 141,022.30

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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.