Home / 159,135.30-219,602.33-87,515.32

Finding the Fourth Proportional to 159,135.30, 219,602.33 and 87,515.32

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Solution

The fourth proportional to 159,135.30, 219,602.33 and 87,515.32 is: 120,768.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,135.30 : 219,602.33 = 87,515.32 : x
  2. Step 2: Convert to fraction form
    159,135.30/219,602.33 = 87,515.32/x
  3. Step 3: Cross multiply
    159,135.30x = 219,602.33 × 87,515.32
  4. Step 4: Simplify right side
    159,135.30x = 19,218,568,182.70
  5. Step 5: Solve for x
    x = 19,218,568,182.70/159,135.30
  6. Step 6: Final answer
    x = 120,768.73

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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.