Home / 131,278.95-196,798.13-42,486.75

Finding the Fourth Proportional to 131,278.95, 196,798.13 and 42,486.75

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Solution

The fourth proportional to 131,278.95, 196,798.13 and 42,486.75 is: 63,691.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,278.95 : 196,798.13 = 42,486.75 : x
  2. Step 2: Convert to fraction form
    131,278.95/196,798.13 = 42,486.75/x
  3. Step 3: Cross multiply
    131,278.95x = 196,798.13 × 42,486.75
  4. Step 4: Simplify right side
    131,278.95x = 8,361,312,458.73
  5. Step 5: Solve for x
    x = 8,361,312,458.73/131,278.95
  6. Step 6: Final answer
    x = 63,691.19

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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.