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Finding the Fourth Proportional to 159,817.79, 220,548.11 and 88,197.30

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Solution

The fourth proportional to 159,817.79, 220,548.11 and 88,197.30 is: 121,712.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,817.79 : 220,548.11 = 88,197.30 : x
  2. Step 2: Convert to fraction form
    159,817.79/220,548.11 = 88,197.30/x
  3. Step 3: Cross multiply
    159,817.79x = 220,548.11 × 88,197.30
  4. Step 4: Simplify right side
    159,817.79x = 19,451,747,381.12
  5. Step 5: Solve for x
    x = 19,451,747,381.12/159,817.79
  6. Step 6: Final answer
    x = 121,712.03

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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.