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Finding the Fourth Proportional to 160,758.92, 221,843.54 and 89,138.28

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Solution

The fourth proportional to 160,758.92, 221,843.54 and 89,138.28 is: 123,008.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,758.92 : 221,843.54 = 89,138.28 : x
  2. Step 2: Convert to fraction form
    160,758.92/221,843.54 = 89,138.28/x
  3. Step 3: Cross multiply
    160,758.92x = 221,843.54 × 89,138.28
  4. Step 4: Simplify right side
    160,758.92x = 19,774,751,584.71
  5. Step 5: Solve for x
    x = 19,774,751,584.71/160,758.92
  6. Step 6: Final answer
    x = 123,008.74

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1.5x scale

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.