Home / 126,110.30-188,968.40-79,264.76

Finding the Fourth Proportional to 126,110.30, 188,968.40 and 79,264.76

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Solution

The fourth proportional to 126,110.30, 188,968.40 and 79,264.76 is: 118,773.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,110.30 : 188,968.40 = 79,264.76 : x
  2. Step 2: Convert to fraction form
    126,110.30/188,968.40 = 79,264.76/x
  3. Step 3: Cross multiply
    126,110.30x = 188,968.40 × 79,264.76
  4. Step 4: Simplify right side
    126,110.30x = 14,978,533,532.42
  5. Step 5: Solve for x
    x = 14,978,533,532.42/126,110.30
  6. Step 6: Final answer
    x = 118,773.28

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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.