Home / 129,842.10-194,714.55-45,569.70

Finding the Fourth Proportional to 129,842.10, 194,714.55 and 45,569.70

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Solution

The fourth proportional to 129,842.10, 194,714.55 and 45,569.70 is: 68,337.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,842.10 : 194,714.55 = 45,569.70 : x
  2. Step 2: Convert to fraction form
    129,842.10/194,714.55 = 45,569.70/x
  3. Step 3: Cross multiply
    129,842.10x = 194,714.55 × 45,569.70
  4. Step 4: Simplify right side
    129,842.10x = 8,873,083,629.14
  5. Step 5: Solve for x
    x = 8,873,083,629.14/129,842.10
  6. Step 6: Final answer
    x = 68,337.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.