Home / 159,475.20-220,085.75-87,855.23

Finding the Fourth Proportional to 159,475.20, 220,085.75 and 87,855.23

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Solution

The fourth proportional to 159,475.20, 220,085.75 and 87,855.23 is: 121,245.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,475.20 : 220,085.75 = 87,855.23 : x
  2. Step 2: Convert to fraction form
    159,475.20/220,085.75 = 87,855.23/x
  3. Step 3: Cross multiply
    159,475.20x = 220,085.75 × 87,855.23
  4. Step 4: Simplify right side
    159,475.20x = 19,335,682,646.27
  5. Step 5: Solve for x
    x = 19,335,682,646.27/159,475.20
  6. Step 6: Final answer
    x = 121,245.70

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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.