Home / 187,057.17-258,138.90-102,174.39

Finding the Fourth Proportional to 187,057.17, 258,138.90 and 102,174.39

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Solution

The fourth proportional to 187,057.17, 258,138.90 and 102,174.39 is: 141,000.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,057.17 : 258,138.90 = 102,174.39 : x
  2. Step 2: Convert to fraction form
    187,057.17/258,138.90 = 102,174.39/x
  3. Step 3: Cross multiply
    187,057.17x = 258,138.90 × 102,174.39
  4. Step 4: Simplify right side
    187,057.17x = 26,375,184,642.77
  5. Step 5: Solve for x
    x = 26,375,184,642.77/187,057.17
  6. Step 6: Final answer
    x = 141,000.66

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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.