Home / 132,408.78-182,724.98-71,979.95

Finding the Fourth Proportional to 132,408.78, 182,724.98 and 71,979.95

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Solution

The fourth proportional to 132,408.78, 182,724.98 and 71,979.95 is: 99,332.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,408.78 : 182,724.98 = 71,979.95 : x
  2. Step 2: Convert to fraction form
    132,408.78/182,724.98 = 71,979.95/x
  3. Step 3: Cross multiply
    132,408.78x = 182,724.98 × 71,979.95
  4. Step 4: Simplify right side
    132,408.78x = 13,152,533,650.63
  5. Step 5: Solve for x
    x = 13,152,533,650.63/132,408.78
  6. Step 6: Final answer
    x = 99,332.79

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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.