Home / 132,140.68-182,363.12-74,780.04

Finding the Fourth Proportional to 132,140.68, 182,363.12 and 74,780.04

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Solution

The fourth proportional to 132,140.68, 182,363.12 and 74,780.04 is: 103,201.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,140.68 : 182,363.12 = 74,780.04 : x
  2. Step 2: Convert to fraction form
    132,140.68/182,363.12 = 74,780.04/x
  3. Step 3: Cross multiply
    132,140.68x = 182,363.12 × 74,780.04
  4. Step 4: Simplify right side
    132,140.68x = 13,637,121,408.12
  5. Step 5: Solve for x
    x = 13,637,121,408.12/132,140.68
  6. Step 6: Final answer
    x = 103,201.54

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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.