Home / 127,542.84-175,961.58-79,778.04

Finding the Fourth Proportional to 127,542.84, 175,961.58 and 79,778.04

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Solution

The fourth proportional to 127,542.84, 175,961.58 and 79,778.04 is: 110,063.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,542.84 : 175,961.58 = 79,778.04 : x
  2. Step 2: Convert to fraction form
    127,542.84/175,961.58 = 79,778.04/x
  3. Step 3: Cross multiply
    127,542.84x = 175,961.58 × 79,778.04
  4. Step 4: Simplify right side
    127,542.84x = 14,037,869,967.70
  5. Step 5: Solve for x
    x = 14,037,869,967.70/127,542.84
  6. Step 6: Final answer
    x = 110,063.96

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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.