Home / 129,352.22-178,479.18-75,626.84

Finding the Fourth Proportional to 129,352.22, 178,479.18 and 75,626.84

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Solution

The fourth proportional to 129,352.22, 178,479.18 and 75,626.84 is: 104,349.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,352.22 : 178,479.18 = 75,626.84 : x
  2. Step 2: Convert to fraction form
    129,352.22/178,479.18 = 75,626.84/x
  3. Step 3: Cross multiply
    129,352.22x = 178,479.18 × 75,626.84
  4. Step 4: Simplify right side
    129,352.22x = 13,497,816,835.39
  5. Step 5: Solve for x
    x = 13,497,816,835.39/129,352.22
  6. Step 6: Final answer
    x = 104,349.33

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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.