Home / 122,626.86-169,219.60-71,644.30

Finding the Fourth Proportional to 122,626.86, 169,219.60 and 71,644.30

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Solution

The fourth proportional to 122,626.86, 169,219.60 and 71,644.30 is: 98,865.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,626.86 : 169,219.60 = 71,644.30 : x
  2. Step 2: Convert to fraction form
    122,626.86/169,219.60 = 71,644.30/x
  3. Step 3: Cross multiply
    122,626.86x = 169,219.60 × 71,644.30
  4. Step 4: Simplify right side
    122,626.86x = 12,123,619,788.28
  5. Step 5: Solve for x
    x = 12,123,619,788.28/122,626.86
  6. Step 6: Final answer
    x = 98,865.94

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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.