Home / 121,024.24-166,945.29-72,613.63

Finding the Fourth Proportional to 121,024.24, 166,945.29 and 72,613.63

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Solution

The fourth proportional to 121,024.24, 166,945.29 and 72,613.63 is: 100,165.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,024.24 : 166,945.29 = 72,613.63 : x
  2. Step 2: Convert to fraction form
    121,024.24/166,945.29 = 72,613.63/x
  3. Step 3: Cross multiply
    121,024.24x = 166,945.29 × 72,613.63
  4. Step 4: Simplify right side
    121,024.24x = 12,122,503,454.68
  5. Step 5: Solve for x
    x = 12,122,503,454.68/121,024.24
  6. Step 6: Final answer
    x = 100,165.91

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1.5x scale

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.