Home / 129,795.11-179,116.21-75,352.33

Finding the Fourth Proportional to 129,795.11, 179,116.21 and 75,352.33

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Solution

The fourth proportional to 129,795.11, 179,116.21 and 75,352.33 is: 103,985.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,795.11 : 179,116.21 = 75,352.33 : x
  2. Step 2: Convert to fraction form
    129,795.11/179,116.21 = 75,352.33/x
  3. Step 3: Cross multiply
    129,795.11x = 179,116.21 × 75,352.33
  4. Step 4: Simplify right side
    129,795.11x = 13,496,823,764.27
  5. Step 5: Solve for x
    x = 13,496,823,764.27/129,795.11
  6. Step 6: Final answer
    x = 103,985.61

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1.5x scale

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.