Home / 120,568.40-180,815.66-83,367.53

Finding the Fourth Proportional to 120,568.40, 180,815.66 and 83,367.53

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Solution

The fourth proportional to 120,568.40, 180,815.66 and 83,367.53 is: 125,025.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,568.40 : 180,815.66 = 83,367.53 : x
  2. Step 2: Convert to fraction form
    120,568.40/180,815.66 = 83,367.53/x
  3. Step 3: Cross multiply
    120,568.40x = 180,815.66 × 83,367.53
  4. Step 4: Simplify right side
    120,568.40x = 15,074,154,959.52
  5. Step 5: Solve for x
    x = 15,074,154,959.52/120,568.40
  6. Step 6: Final answer
    x = 125,025.75

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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.