Home / 121,767.28-182,629.02-55,195

Finding the Fourth Proportional to 121,767.28, 182,629.02 and 55,195

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Solution

The fourth proportional to 121,767.28, 182,629.02 and 55,195 is: 82,782.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,767.28 : 182,629.02 = 55,195 : x
  2. Step 2: Convert to fraction form
    121,767.28/182,629.02 = 55,195/x
  3. Step 3: Cross multiply
    121,767.28x = 182,629.02 × 55,195
  4. Step 4: Simplify right side
    121,767.28x = 10,080,208,758.90
  5. Step 5: Solve for x
    x = 10,080,208,758.90/121,767.28
  6. Step 6: Final answer
    x = 82,782.57

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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.