Home / 131,185.47-196,806.92-42,447.95

Finding the Fourth Proportional to 131,185.47, 196,806.92 and 42,447.95

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Solution

The fourth proportional to 131,185.47, 196,806.92 and 42,447.95 is: 63,681.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,185.47 : 196,806.92 = 42,447.95 : x
  2. Step 2: Convert to fraction form
    131,185.47/196,806.92 = 42,447.95/x
  3. Step 3: Cross multiply
    131,185.47x = 196,806.92 × 42,447.95
  4. Step 4: Simplify right side
    131,185.47x = 8,354,049,841.57
  5. Step 5: Solve for x
    x = 8,354,049,841.57/131,185.47
  6. Step 6: Final answer
    x = 63,681.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.