Home / 132,826.40-199,239.60-126,087.20

Finding the Fourth Proportional to 132,826.40, 199,239.60 and 126,087.20

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Solution

The fourth proportional to 132,826.40, 199,239.60 and 126,087.20 is: 189,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,826.40 : 199,239.60 = 126,087.20 : x
  2. Step 2: Convert to fraction form
    132,826.40/199,239.60 = 126,087.20/x
  3. Step 3: Cross multiply
    132,826.40x = 199,239.60 × 126,087.20
  4. Step 4: Simplify right side
    132,826.40x = 25,121,563,293.12
  5. Step 5: Solve for x
    x = 25,121,563,293.12/132,826.40
  6. Step 6: Final answer
    x = 189,130.80

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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.