Home / 126,077.20-189,115.80-63,739.60

Finding the Fourth Proportional to 126,077.20, 189,115.80 and 63,739.60

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Solution

The fourth proportional to 126,077.20, 189,115.80 and 63,739.60 is: 95,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,077.20 : 189,115.80 = 63,739.60 : x
  2. Step 2: Convert to fraction form
    126,077.20/189,115.80 = 63,739.60/x
  3. Step 3: Cross multiply
    126,077.20x = 189,115.80 × 63,739.60
  4. Step 4: Simplify right side
    126,077.20x = 12,054,165,445.68
  5. Step 5: Solve for x
    x = 12,054,165,445.68/126,077.20
  6. Step 6: Final answer
    x = 95,609.40

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1.5x scale

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.