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Finding the Fourth Proportional to 121,359.86, 167,472.73 and 76,062.30

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Solution

The fourth proportional to 121,359.86, 167,472.73 and 76,062.30 is: 104,963.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,359.86 : 167,472.73 = 76,062.30 : x
  2. Step 2: Convert to fraction form
    121,359.86/167,472.73 = 76,062.30/x
  3. Step 3: Cross multiply
    121,359.86x = 167,472.73 × 76,062.30
  4. Step 4: Simplify right side
    121,359.86x = 12,738,361,031.08
  5. Step 5: Solve for x
    x = 12,738,361,031.08/121,359.86
  6. Step 6: Final answer
    x = 104,963.54

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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.