Home / 129,155.06-193,743.70-35,660.80

Finding the Fourth Proportional to 129,155.06, 193,743.70 and 35,660.80

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Solution

The fourth proportional to 129,155.06, 193,743.70 and 35,660.80 is: 53,494.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,155.06 : 193,743.70 = 35,660.80 : x
  2. Step 2: Convert to fraction form
    129,155.06/193,743.70 = 35,660.80/x
  3. Step 3: Cross multiply
    129,155.06x = 193,743.70 × 35,660.80
  4. Step 4: Simplify right side
    129,155.06x = 6,909,055,336.96
  5. Step 5: Solve for x
    x = 6,909,055,336.96/129,155.06
  6. Step 6: Final answer
    x = 53,494.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.