Home / 132,419.08-182,739.87-71,988.40

Finding the Fourth Proportional to 132,419.08, 182,739.87 and 71,988.40

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Solution

The fourth proportional to 132,419.08, 182,739.87 and 71,988.40 is: 99,344.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,419.08 : 182,739.87 = 71,988.40 : x
  2. Step 2: Convert to fraction form
    132,419.08/182,739.87 = 71,988.40/x
  3. Step 3: Cross multiply
    132,419.08x = 182,739.87 × 71,988.40
  4. Step 4: Simplify right side
    132,419.08x = 13,155,150,260.49
  5. Step 5: Solve for x
    x = 13,155,150,260.49/132,419.08
  6. Step 6: Final answer
    x = 99,344.83

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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.