Home / 159,132.30-219,598.19-87,512.32

Finding the Fourth Proportional to 159,132.30, 219,598.19 and 87,512.32

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Solution

The fourth proportional to 159,132.30, 219,598.19 and 87,512.32 is: 120,764.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,132.30 : 219,598.19 = 87,512.32 : x
  2. Step 2: Convert to fraction form
    159,132.30/219,598.19 = 87,512.32/x
  3. Step 3: Cross multiply
    159,132.30x = 219,598.19 × 87,512.32
  4. Step 4: Simplify right side
    159,132.30x = 19,217,547,074.70
  5. Step 5: Solve for x
    x = 19,217,547,074.70/159,132.30
  6. Step 6: Final answer
    x = 120,764.59

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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.