Home / 122,776.48-169,433.92-71,793.76

Finding the Fourth Proportional to 122,776.48, 169,433.92 and 71,793.76

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Solution

The fourth proportional to 122,776.48, 169,433.92 and 71,793.76 is: 99,076.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,776.48 : 169,433.92 = 71,793.76 : x
  2. Step 2: Convert to fraction form
    122,776.48/169,433.92 = 71,793.76/x
  3. Step 3: Cross multiply
    122,776.48x = 169,433.92 × 71,793.76
  4. Step 4: Simplify right side
    122,776.48x = 12,164,298,188.34
  5. Step 5: Solve for x
    x = 12,164,298,188.34/122,776.48
  6. Step 6: Final answer
    x = 99,076.78

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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.