Home / 119,714.24-165,082.96-78,889.04

Finding the Fourth Proportional to 119,714.24, 165,082.96 and 78,889.04

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Solution

The fourth proportional to 119,714.24, 165,082.96 and 78,889.04 is: 108,786.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,714.24 : 165,082.96 = 78,889.04 : x
  2. Step 2: Convert to fraction form
    119,714.24/165,082.96 = 78,889.04/x
  3. Step 3: Cross multiply
    119,714.24x = 165,082.96 × 78,889.04
  4. Step 4: Simplify right side
    119,714.24x = 13,023,236,234.76
  5. Step 5: Solve for x
    x = 13,023,236,234.76/119,714.24
  6. Step 6: Final answer
    x = 108,786.02

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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.