Home / 132,408.36-182,724.73-71,979.12

Finding the Fourth Proportional to 132,408.36, 182,724.73 and 71,979.12

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Solution

The fourth proportional to 132,408.36, 182,724.73 and 71,979.12 is: 99,331.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,408.36 : 182,724.73 = 71,979.12 : x
  2. Step 2: Convert to fraction form
    132,408.36/182,724.73 = 71,979.12/x
  3. Step 3: Cross multiply
    132,408.36x = 182,724.73 × 71,979.12
  4. Step 4: Simplify right side
    132,408.36x = 13,152,364,952.73
  5. Step 5: Solve for x
    x = 13,152,364,952.73/132,408.36
  6. Step 6: Final answer
    x = 99,331.83

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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.