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Finding the Fourth Proportional to 159,970.20, 220,757.58 and 88,355.13

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Solution

The fourth proportional to 159,970.20, 220,757.58 and 88,355.13 is: 121,929.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,970.20 : 220,757.58 = 88,355.13 : x
  2. Step 2: Convert to fraction form
    159,970.20/220,757.58 = 88,355.13/x
  3. Step 3: Cross multiply
    159,970.20x = 220,757.58 × 88,355.13
  4. Step 4: Simplify right side
    159,970.20x = 19,505,064,679.39
  5. Step 5: Solve for x
    x = 19,505,064,679.39/159,970.20
  6. Step 6: Final answer
    x = 121,929.36

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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.