Home / 129,751.09-179,060.92-75,299.06

Finding the Fourth Proportional to 129,751.09, 179,060.92 and 75,299.06

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Solution

The fourth proportional to 129,751.09, 179,060.92 and 75,299.06 is: 103,915.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,751.09 : 179,060.92 = 75,299.06 : x
  2. Step 2: Convert to fraction form
    129,751.09/179,060.92 = 75,299.06/x
  3. Step 3: Cross multiply
    129,751.09x = 179,060.92 × 75,299.06
  4. Step 4: Simplify right side
    129,751.09x = 13,483,119,218.14
  5. Step 5: Solve for x
    x = 13,483,119,218.14/129,751.09
  6. Step 6: Final answer
    x = 103,915.27

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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.