Home / 131,909.48-182,062.56-121,282.28

Finding the Fourth Proportional to 131,909.48, 182,062.56 and 121,282.28

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Solution

The fourth proportional to 131,909.48, 182,062.56 and 121,282.28 is: 167,394.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,909.48 : 182,062.56 = 121,282.28 : x
  2. Step 2: Convert to fraction form
    131,909.48/182,062.56 = 121,282.28/x
  3. Step 3: Cross multiply
    131,909.48x = 182,062.56 × 121,282.28
  4. Step 4: Simplify right side
    131,909.48x = 22,080,962,379.44
  5. Step 5: Solve for x
    x = 22,080,962,379.44/131,909.48
  6. Step 6: Final answer
    x = 167,394.81

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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.