Home / 121,575.52-167,851.26-83,399.02

Finding the Fourth Proportional to 121,575.52, 167,851.26 and 83,399.02

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Solution

The fourth proportional to 121,575.52, 167,851.26 and 83,399.02 is: 115,143.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,575.52 : 167,851.26 = 83,399.02 : x
  2. Step 2: Convert to fraction form
    121,575.52/167,851.26 = 83,399.02/x
  3. Step 3: Cross multiply
    121,575.52x = 167,851.26 × 83,399.02
  4. Step 4: Simplify right side
    121,575.52x = 13,998,630,589.77
  5. Step 5: Solve for x
    x = 13,998,630,589.77/121,575.52
  6. Step 6: Final answer
    x = 115,143.50

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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.