Home / 131,839.76-181,948.20-75,259.64

Finding the Fourth Proportional to 131,839.76, 181,948.20 and 75,259.64

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Solution

The fourth proportional to 131,839.76, 181,948.20 and 75,259.64 is: 103,863.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,839.76 : 181,948.20 = 75,259.64 : x
  2. Step 2: Convert to fraction form
    131,839.76/181,948.20 = 75,259.64/x
  3. Step 3: Cross multiply
    131,839.76x = 181,948.20 × 75,259.64
  4. Step 4: Simplify right side
    131,839.76x = 13,693,356,030.65
  5. Step 5: Solve for x
    x = 13,693,356,030.65/131,839.76
  6. Step 6: Final answer
    x = 103,863.63

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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.