Home / 159,546.12-220,175.10-87,928.74

Finding the Fourth Proportional to 159,546.12, 220,175.10 and 87,928.74

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Solution

The fourth proportional to 159,546.12, 220,175.10 and 87,928.74 is: 121,342.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,546.12 : 220,175.10 = 87,928.74 : x
  2. Step 2: Convert to fraction form
    159,546.12/220,175.10 = 87,928.74/x
  3. Step 3: Cross multiply
    159,546.12x = 220,175.10 × 87,928.74
  4. Step 4: Simplify right side
    159,546.12x = 19,359,719,122.37
  5. Step 5: Solve for x
    x = 19,359,719,122.37/159,546.12
  6. Step 6: Final answer
    x = 121,342.46

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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.