Home / 129,932.12-179,478.42-104,534.12

Finding the Fourth Proportional to 129,932.12, 179,478.42 and 104,534.12

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Solution

The fourth proportional to 129,932.12, 179,478.42 and 104,534.12 is: 144,395.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,932.12 : 179,478.42 = 104,534.12 : x
  2. Step 2: Convert to fraction form
    129,932.12/179,478.42 = 104,534.12/x
  3. Step 3: Cross multiply
    129,932.12x = 179,478.42 × 104,534.12
  4. Step 4: Simplify right side
    129,932.12x = 18,761,618,693.69
  5. Step 5: Solve for x
    x = 18,761,618,693.69/129,932.12
  6. Step 6: Final answer
    x = 144,395.54

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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.