Home / 121,742.28-182,591.52-55,170

Finding the Fourth Proportional to 121,742.28, 182,591.52 and 55,170

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Solution

The fourth proportional to 121,742.28, 182,591.52 and 55,170 is: 82,745.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,742.28 : 182,591.52 = 55,170 : x
  2. Step 2: Convert to fraction form
    121,742.28/182,591.52 = 55,170/x
  3. Step 3: Cross multiply
    121,742.28x = 182,591.52 × 55,170
  4. Step 4: Simplify right side
    121,742.28x = 10,073,574,158.40
  5. Step 5: Solve for x
    x = 10,073,574,158.40/121,742.28
  6. Step 6: Final answer
    x = 82,745.08

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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.