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Finding the Fourth Proportional to 159,511.54, 220,124.16 and 90,600.53

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Solution

The fourth proportional to 159,511.54, 220,124.16 and 90,600.53 is: 125,027.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,511.54 : 220,124.16 = 90,600.53 : x
  2. Step 2: Convert to fraction form
    159,511.54/220,124.16 = 90,600.53/x
  3. Step 3: Cross multiply
    159,511.54x = 220,124.16 × 90,600.53
  4. Step 4: Simplify right side
    159,511.54x = 19,943,366,063.67
  5. Step 5: Solve for x
    x = 19,943,366,063.67/159,511.54
  6. Step 6: Final answer
    x = 125,027.73

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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.