Home / 187,612.16-258,902.22-102,729.20

Finding the Fourth Proportional to 187,612.16, 258,902.22 and 102,729.20

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Solution

The fourth proportional to 187,612.16, 258,902.22 and 102,729.20 is: 141,764.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,612.16 : 258,902.22 = 102,729.20 : x
  2. Step 2: Convert to fraction form
    187,612.16/258,902.22 = 102,729.20/x
  3. Step 3: Cross multiply
    187,612.16x = 258,902.22 × 102,729.20
  4. Step 4: Simplify right side
    187,612.16x = 26,596,817,938.82
  5. Step 5: Solve for x
    x = 26,596,817,938.82/187,612.16
  6. Step 6: Final answer
    x = 141,764.89

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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.