Home / 187,486.60-258,691.50-111,029.72

Finding the Fourth Proportional to 187,486.60, 258,691.50 and 111,029.72

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Solution

The fourth proportional to 187,486.60, 258,691.50 and 111,029.72 is: 153,197.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,486.60 : 258,691.50 = 111,029.72 : x
  2. Step 2: Convert to fraction form
    187,486.60/258,691.50 = 111,029.72/x
  3. Step 3: Cross multiply
    187,486.60x = 258,691.50 × 111,029.72
  4. Step 4: Simplify right side
    187,486.60x = 28,722,444,811.38
  5. Step 5: Solve for x
    x = 28,722,444,811.38/187,486.60
  6. Step 6: Final answer
    x = 153,197.32

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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.