Home / 131,757.45-181,855.17-103,020.27

Finding the Fourth Proportional to 131,757.45, 181,855.17 and 103,020.27

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Solution

The fourth proportional to 131,757.45, 181,855.17 and 103,020.27 is: 142,191.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,757.45 : 181,855.17 = 103,020.27 : x
  2. Step 2: Convert to fraction form
    131,757.45/181,855.17 = 103,020.27/x
  3. Step 3: Cross multiply
    131,757.45x = 181,855.17 × 103,020.27
  4. Step 4: Simplify right side
    131,757.45x = 18,734,768,714.30
  5. Step 5: Solve for x
    x = 18,734,768,714.30/131,757.45
  6. Step 6: Final answer
    x = 142,191.34

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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.