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Finding the Fourth Proportional to 159,777.82, 220,494.18 and 88,157.89

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Solution

The fourth proportional to 159,777.82, 220,494.18 and 88,157.89 is: 121,658.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,777.82 : 220,494.18 = 88,157.89 : x
  2. Step 2: Convert to fraction form
    159,777.82/220,494.18 = 88,157.89/x
  3. Step 3: Cross multiply
    159,777.82x = 220,494.18 × 88,157.89
  4. Step 4: Simplify right side
    159,777.82x = 19,438,301,666.08
  5. Step 5: Solve for x
    x = 19,438,301,666.08/159,777.82
  6. Step 6: Final answer
    x = 121,658.32

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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.