Home / 187,002.18-258,052.77-115,387.38

Finding the Fourth Proportional to 187,002.18, 258,052.77 and 115,387.38

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Solution

The fourth proportional to 187,002.18, 258,052.77 and 115,387.38 is: 159,228.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,002.18 : 258,052.77 = 115,387.38 : x
  2. Step 2: Convert to fraction form
    187,002.18/258,052.77 = 115,387.38/x
  3. Step 3: Cross multiply
    187,002.18x = 258,052.77 × 115,387.38
  4. Step 4: Simplify right side
    187,002.18x = 29,776,033,032.04
  5. Step 5: Solve for x
    x = 29,776,033,032.04/187,002.18
  6. Step 6: Final answer
    x = 159,228.27

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1.5x scale

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.