Home / 187,418.16-258,744-123,940.08

Finding the Fourth Proportional to 187,418.16, 258,744 and 123,940.08

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Solution

The fourth proportional to 187,418.16, 258,744 and 123,940.08 is: 171,108.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,418.16 : 258,744 = 123,940.08 : x
  2. Step 2: Convert to fraction form
    187,418.16/258,744 = 123,940.08/x
  3. Step 3: Cross multiply
    187,418.16x = 258,744 × 123,940.08
  4. Step 4: Simplify right side
    187,418.16x = 32,068,752,059.52
  5. Step 5: Solve for x
    x = 32,068,752,059.52/187,418.16
  6. Step 6: Final answer
    x = 171,108.03

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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.