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Finding the Fourth Proportional to 159,994.56, 240,137.10 and 85,177.20

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Solution

The fourth proportional to 159,994.56, 240,137.10 and 85,177.20 is: 127,843.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,994.56 : 240,137.10 = 85,177.20 : x
  2. Step 2: Convert to fraction form
    159,994.56/240,137.10 = 85,177.20/x
  3. Step 3: Cross multiply
    159,994.56x = 240,137.10 × 85,177.20
  4. Step 4: Simplify right side
    159,994.56x = 20,454,205,794.12
  5. Step 5: Solve for x
    x = 20,454,205,794.12/159,994.56
  6. Step 6: Final answer
    x = 127,843.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.