Home / 131,742.68-181,805.33-71,313.30

Finding the Fourth Proportional to 131,742.68, 181,805.33 and 71,313.30

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Solution

The fourth proportional to 131,742.68, 181,805.33 and 71,313.30 is: 98,412.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,742.68 : 181,805.33 = 71,313.30 : x
  2. Step 2: Convert to fraction form
    131,742.68/181,805.33 = 71,313.30/x
  3. Step 3: Cross multiply
    131,742.68x = 181,805.33 × 71,313.30
  4. Step 4: Simplify right side
    131,742.68x = 12,965,138,218.17
  5. Step 5: Solve for x
    x = 12,965,138,218.17/131,742.68
  6. Step 6: Final answer
    x = 98,412.59

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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.