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Finding the Fourth Proportional to 159,464.56, 220,061.10 and 87,844.54

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Solution

The fourth proportional to 159,464.56, 220,061.10 and 87,844.54 is: 121,225.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,464.56 : 220,061.10 = 87,844.54 : x
  2. Step 2: Convert to fraction form
    159,464.56/220,061.10 = 87,844.54/x
  3. Step 3: Cross multiply
    159,464.56x = 220,061.10 × 87,844.54
  4. Step 4: Simplify right side
    159,464.56x = 19,331,166,101.39
  5. Step 5: Solve for x
    x = 19,331,166,101.39/159,464.56
  6. Step 6: Final answer
    x = 121,225.47

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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.