Home / 187,008.24-258,071.76-102,126.72

Finding the Fourth Proportional to 187,008.24, 258,071.76 and 102,126.72

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Solution

The fourth proportional to 187,008.24, 258,071.76 and 102,126.72 is: 140,935.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,008.24 : 258,071.76 = 102,126.72 : x
  2. Step 2: Convert to fraction form
    187,008.24/258,071.76 = 102,126.72/x
  3. Step 3: Cross multiply
    187,008.24x = 258,071.76 × 102,126.72
  4. Step 4: Simplify right side
    187,008.24x = 26,356,022,373.43
  5. Step 5: Solve for x
    x = 26,356,022,373.43/187,008.24
  6. Step 6: Final answer
    x = 140,935.09

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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.