Home / 187,530.18-258,781.68-102,630.84

Finding the Fourth Proportional to 187,530.18, 258,781.68 and 102,630.84

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Solution

The fourth proportional to 187,530.18, 258,781.68 and 102,630.84 is: 141,625.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,530.18 : 258,781.68 = 102,630.84 : x
  2. Step 2: Convert to fraction form
    187,530.18/258,781.68 = 102,630.84/x
  3. Step 3: Cross multiply
    187,530.18x = 258,781.68 × 102,630.84
  4. Step 4: Simplify right side
    187,530.18x = 26,558,981,195.01
  5. Step 5: Solve for x
    x = 26,558,981,195.01/187,530.18
  6. Step 6: Final answer
    x = 141,625.10

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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.