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Finding the Fourth Proportional to 160,618.38, 221,650.06 and 88,997.78

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Solution

The fourth proportional to 160,618.38, 221,650.06 and 88,997.78 is: 122,815.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,618.38 : 221,650.06 = 88,997.78 : x
  2. Step 2: Convert to fraction form
    160,618.38/221,650.06 = 88,997.78/x
  3. Step 3: Cross multiply
    160,618.38x = 221,650.06 × 88,997.78
  4. Step 4: Simplify right side
    160,618.38x = 19,726,362,528.59
  5. Step 5: Solve for x
    x = 19,726,362,528.59/160,618.38
  6. Step 6: Final answer
    x = 122,815.10

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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.