Home / 159,609.38-220,263.39-87,012.32

Finding the Fourth Proportional to 159,609.38, 220,263.39 and 87,012.32

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Solution

The fourth proportional to 159,609.38, 220,263.39 and 87,012.32 is: 120,078.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,609.38 : 220,263.39 = 87,012.32 : x
  2. Step 2: Convert to fraction form
    159,609.38/220,263.39 = 87,012.32/x
  3. Step 3: Cross multiply
    159,609.38x = 220,263.39 × 87,012.32
  4. Step 4: Simplify right side
    159,609.38x = 19,165,628,574.96
  5. Step 5: Solve for x
    x = 19,165,628,574.96/159,609.38
  6. Step 6: Final answer
    x = 120,078.33

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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.