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Finding the Fourth Proportional to 159,549.50, 220,188.46 and 87,936.18

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Solution

The fourth proportional to 159,549.50, 220,188.46 and 87,936.18 is: 121,357.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,549.50 : 220,188.46 = 87,936.18 : x
  2. Step 2: Convert to fraction form
    159,549.50/220,188.46 = 87,936.18/x
  3. Step 3: Cross multiply
    159,549.50x = 220,188.46 × 87,936.18
  4. Step 4: Simplify right side
    159,549.50x = 19,362,532,410.38
  5. Step 5: Solve for x
    x = 19,362,532,410.38/159,549.50
  6. Step 6: Final answer
    x = 121,357.53

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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.