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Finding the Fourth Proportional to 160,635.87, 221,671.92 and 89,022.56

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Solution

The fourth proportional to 160,635.87, 221,671.92 and 89,022.56 is: 122,848.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,635.87 : 221,671.92 = 89,022.56 : x
  2. Step 2: Convert to fraction form
    160,635.87/221,671.92 = 89,022.56/x
  3. Step 3: Cross multiply
    160,635.87x = 221,671.92 × 89,022.56
  4. Step 4: Simplify right side
    160,635.87x = 19,733,800,690.16
  5. Step 5: Solve for x
    x = 19,733,800,690.16/160,635.87
  6. Step 6: Final answer
    x = 122,848.03

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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.