Home / 126,339.35-189,608.04-88,140.20

Finding the Fourth Proportional to 126,339.35, 189,608.04 and 88,140.20

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Solution

The fourth proportional to 126,339.35, 189,608.04 and 88,140.20 is: 132,279.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,339.35 : 189,608.04 = 88,140.20 : x
  2. Step 2: Convert to fraction form
    126,339.35/189,608.04 = 88,140.20/x
  3. Step 3: Cross multiply
    126,339.35x = 189,608.04 × 88,140.20
  4. Step 4: Simplify right side
    126,339.35x = 16,712,089,619.17
  5. Step 5: Solve for x
    x = 16,712,089,619.17/126,339.35
  6. Step 6: Final answer
    x = 132,279.38

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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.