Home / 102,633.44-141,714.24-78,722.24

Finding the Fourth Proportional to 102,633.44, 141,714.24 and 78,722.24

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Solution

The fourth proportional to 102,633.44, 141,714.24 and 78,722.24 is: 108,698.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,633.44 : 141,714.24 = 78,722.24 : x
  2. Step 2: Convert to fraction form
    102,633.44/141,714.24 = 78,722.24/x
  3. Step 3: Cross multiply
    102,633.44x = 141,714.24 × 78,722.24
  4. Step 4: Simplify right side
    102,633.44x = 11,156,062,412.70
  5. Step 5: Solve for x
    x = 11,156,062,412.70/102,633.44
  6. Step 6: Final answer
    x = 108,698.12

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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.