Home / 131,769.72-181,843.68-71,341.68

Finding the Fourth Proportional to 131,769.72, 181,843.68 and 71,341.68

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Solution

The fourth proportional to 131,769.72, 181,843.68 and 71,341.68 is: 98,452.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,769.72 : 181,843.68 = 71,341.68 : x
  2. Step 2: Convert to fraction form
    131,769.72/181,843.68 = 71,341.68/x
  3. Step 3: Cross multiply
    131,769.72x = 181,843.68 × 71,341.68
  4. Step 4: Simplify right side
    131,769.72x = 12,973,033,628.58
  5. Step 5: Solve for x
    x = 12,973,033,628.58/131,769.72
  6. Step 6: Final answer
    x = 98,452.31

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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.