Home / 131,262.75-181,142.60-71,646.75

Finding the Fourth Proportional to 131,262.75, 181,142.60 and 71,646.75

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Solution

The fourth proportional to 131,262.75, 181,142.60 and 71,646.75 is: 98,872.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,262.75 : 181,142.60 = 71,646.75 : x
  2. Step 2: Convert to fraction form
    131,262.75/181,142.60 = 71,646.75/x
  3. Step 3: Cross multiply
    131,262.75x = 181,142.60 × 71,646.75
  4. Step 4: Simplify right side
    131,262.75x = 12,978,278,218.32
  5. Step 5: Solve for x
    x = 12,978,278,218.32/131,262.75
  6. Step 6: Final answer
    x = 98,872.52

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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.