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Finding the Fourth Proportional to 159,909.48, 220,675.32 and 88,289.56

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Solution

The fourth proportional to 159,909.48, 220,675.32 and 88,289.56 is: 121,839.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,909.48 : 220,675.32 = 88,289.56 : x
  2. Step 2: Convert to fraction form
    159,909.48/220,675.32 = 88,289.56/x
  3. Step 3: Cross multiply
    159,909.48x = 220,675.32 × 88,289.56
  4. Step 4: Simplify right side
    159,909.48x = 19,483,326,905.66
  5. Step 5: Solve for x
    x = 19,483,326,905.66/159,909.48
  6. Step 6: Final answer
    x = 121,839.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.