Home / 122,346.98-168,861.88-79,831.70

Finding the Fourth Proportional to 122,346.98, 168,861.88 and 79,831.70

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Solution

The fourth proportional to 122,346.98, 168,861.88 and 79,831.70 is: 110,182.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,346.98 : 168,861.88 = 79,831.70 : x
  2. Step 2: Convert to fraction form
    122,346.98/168,861.88 = 79,831.70/x
  3. Step 3: Cross multiply
    122,346.98x = 168,861.88 × 79,831.70
  4. Step 4: Simplify right side
    122,346.98x = 13,480,530,945.60
  5. Step 5: Solve for x
    x = 13,480,530,945.60/122,346.98
  6. Step 6: Final answer
    x = 110,182.78

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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.