Home / 121,002.18-166,997.88-73,272.12

Finding the Fourth Proportional to 121,002.18, 166,997.88 and 73,272.12

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Solution

The fourth proportional to 121,002.18, 166,997.88 and 73,272.12 is: 101,124.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,002.18 : 166,997.88 = 73,272.12 : x
  2. Step 2: Convert to fraction form
    121,002.18/166,997.88 = 73,272.12/x
  3. Step 3: Cross multiply
    121,002.18x = 166,997.88 × 73,272.12
  4. Step 4: Simplify right side
    121,002.18x = 12,236,288,703.11
  5. Step 5: Solve for x
    x = 12,236,288,703.11/121,002.18
  6. Step 6: Final answer
    x = 101,124.53

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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.