Home / 131,882.48-181,987.76-75,286.16

Finding the Fourth Proportional to 131,882.48, 181,987.76 and 75,286.16

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Solution

The fourth proportional to 131,882.48, 181,987.76 and 75,286.16 is: 103,889.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,882.48 : 181,987.76 = 75,286.16 : x
  2. Step 2: Convert to fraction form
    131,882.48/181,987.76 = 75,286.16/x
  3. Step 3: Cross multiply
    131,882.48x = 181,987.76 × 75,286.16
  4. Step 4: Simplify right side
    131,882.48x = 13,701,159,617.40
  5. Step 5: Solve for x
    x = 13,701,159,617.40/131,882.48
  6. Step 6: Final answer
    x = 103,889.16

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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.