Home / 130,330.88-195,480.96-102,636.80

Finding the Fourth Proportional to 130,330.88, 195,480.96 and 102,636.80

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Solution

The fourth proportional to 130,330.88, 195,480.96 and 102,636.80 is: 153,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,330.88 : 195,480.96 = 102,636.80 : x
  2. Step 2: Convert to fraction form
    130,330.88/195,480.96 = 102,636.80/x
  3. Step 3: Cross multiply
    130,330.88x = 195,480.96 × 102,636.80
  4. Step 4: Simplify right side
    130,330.88x = 20,063,540,195.33
  5. Step 5: Solve for x
    x = 20,063,540,195.33/130,330.88
  6. Step 6: Final answer
    x = 153,943.10

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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.