Home / 132,120.24-182,300.40-78,452.88

Finding the Fourth Proportional to 132,120.24, 182,300.40 and 78,452.88

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Solution

The fourth proportional to 132,120.24, 182,300.40 and 78,452.88 is: 108,249.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,120.24 : 182,300.40 = 78,452.88 : x
  2. Step 2: Convert to fraction form
    132,120.24/182,300.40 = 78,452.88/x
  3. Step 3: Cross multiply
    132,120.24x = 182,300.40 × 78,452.88
  4. Step 4: Simplify right side
    132,120.24x = 14,301,991,405.15
  5. Step 5: Solve for x
    x = 14,301,991,405.15/132,120.24
  6. Step 6: Final answer
    x = 108,249.81

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1.5x scale

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.