Home / 131,279.95-196,799.63-42,487.75

Finding the Fourth Proportional to 131,279.95, 196,799.63 and 42,487.75

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Solution

The fourth proportional to 131,279.95, 196,799.63 and 42,487.75 is: 63,692.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,279.95 : 196,799.63 = 42,487.75 : x
  2. Step 2: Convert to fraction form
    131,279.95/196,799.63 = 42,487.75/x
  3. Step 3: Cross multiply
    131,279.95x = 196,799.63 × 42,487.75
  4. Step 4: Simplify right side
    131,279.95x = 8,361,573,479.53
  5. Step 5: Solve for x
    x = 8,361,573,479.53/131,279.95
  6. Step 6: Final answer
    x = 63,692.69

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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.