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Finding the Fourth Proportional to 159,652.80, 220,322.40 and 88,035.36

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Solution

The fourth proportional to 159,652.80, 220,322.40 and 88,035.36 is: 121,489.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,652.80 : 220,322.40 = 88,035.36 : x
  2. Step 2: Convert to fraction form
    159,652.80/220,322.40 = 88,035.36/x
  3. Step 3: Cross multiply
    159,652.80x = 220,322.40 × 88,035.36
  4. Step 4: Simplify right side
    159,652.80x = 19,396,161,800.06
  5. Step 5: Solve for x
    x = 19,396,161,800.06/159,652.80
  6. Step 6: Final answer
    x = 121,489.64

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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.