Home / 159,861.15-220,592.61-88,236.51

Finding the Fourth Proportional to 159,861.15, 220,592.61 and 88,236.51

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Solution

The fourth proportional to 159,861.15, 220,592.61 and 88,236.51 is: 121,757.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,861.15 : 220,592.61 = 88,236.51 : x
  2. Step 2: Convert to fraction form
    159,861.15/220,592.61 = 88,236.51/x
  3. Step 3: Cross multiply
    159,861.15x = 220,592.61 × 88,236.51
  4. Step 4: Simplify right side
    159,861.15x = 19,464,322,038.19
  5. Step 5: Solve for x
    x = 19,464,322,038.19/159,861.15
  6. Step 6: Final answer
    x = 121,757.68

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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.