Home / 187,071.45-258,148.95-102,172.11

Finding the Fourth Proportional to 187,071.45, 258,148.95 and 102,172.11

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Solution

The fourth proportional to 187,071.45, 258,148.95 and 102,172.11 is: 140,992.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,071.45 : 258,148.95 = 102,172.11 : x
  2. Step 2: Convert to fraction form
    187,071.45/258,148.95 = 102,172.11/x
  3. Step 3: Cross multiply
    187,071.45x = 258,148.95 × 102,172.11
  4. Step 4: Simplify right side
    187,071.45x = 26,375,622,915.78
  5. Step 5: Solve for x
    x = 26,375,622,915.78/187,071.45
  6. Step 6: Final answer
    x = 140,992.24

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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.