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Finding the Fourth Proportional to 159,598.22, 220,247.04 and 87,980.80

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Solution

The fourth proportional to 159,598.22, 220,247.04 and 87,980.80 is: 121,414.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,598.22 : 220,247.04 = 87,980.80 : x
  2. Step 2: Convert to fraction form
    159,598.22/220,247.04 = 87,980.80/x
  3. Step 3: Cross multiply
    159,598.22x = 220,247.04 × 87,980.80
  4. Step 4: Simplify right side
    159,598.22x = 19,377,510,336.93
  5. Step 5: Solve for x
    x = 19,377,510,336.93/159,598.22
  6. Step 6: Final answer
    x = 121,414.33

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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.