Home / 130,540.12-195,897.68-83,825.80

Finding the Fourth Proportional to 130,540.12, 195,897.68 and 83,825.80

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Solution

The fourth proportional to 130,540.12, 195,897.68 and 83,825.80 is: 125,794.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,540.12 : 195,897.68 = 83,825.80 : x
  2. Step 2: Convert to fraction form
    130,540.12/195,897.68 = 83,825.80/x
  3. Step 3: Cross multiply
    130,540.12x = 195,897.68 × 83,825.80
  4. Step 4: Simplify right side
    130,540.12x = 16,421,279,744.14
  5. Step 5: Solve for x
    x = 16,421,279,744.14/130,540.12
  6. Step 6: Final answer
    x = 125,794.89

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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.