Home / 187,071.95-258,149.64-102,172.61

Finding the Fourth Proportional to 187,071.95, 258,149.64 and 102,172.61

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Solution

The fourth proportional to 187,071.95, 258,149.64 and 102,172.61 is: 140,992.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,071.95 : 258,149.64 = 102,172.61 : x
  2. Step 2: Convert to fraction form
    187,071.95/258,149.64 = 102,172.61/x
  3. Step 3: Cross multiply
    187,071.95x = 258,149.64 × 102,172.61
  4. Step 4: Simplify right side
    187,071.95x = 26,375,822,489.36
  5. Step 5: Solve for x
    x = 26,375,822,489.36/187,071.95
  6. Step 6: Final answer
    x = 140,992.93

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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.