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Finding the Fourth Proportional to 159,321.60, 220,060.80 and 116,812.80

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Solution

The fourth proportional to 159,321.60, 220,060.80 and 116,812.80 is: 161,346.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,321.60 : 220,060.80 = 116,812.80 : x
  2. Step 2: Convert to fraction form
    159,321.60/220,060.80 = 116,812.80/x
  3. Step 3: Cross multiply
    159,321.60x = 220,060.80 × 116,812.80
  4. Step 4: Simplify right side
    159,321.60x = 25,705,918,218.24
  5. Step 5: Solve for x
    x = 25,705,918,218.24/159,321.60
  6. Step 6: Final answer
    x = 161,346.10

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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.