Home / 130,104.18-195,221.87-51,274.90

Finding the Fourth Proportional to 130,104.18, 195,221.87 and 51,274.90

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Solution

The fourth proportional to 130,104.18, 195,221.87 and 51,274.90 is: 76,938.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,104.18 : 195,221.87 = 51,274.90 : x
  2. Step 2: Convert to fraction form
    130,104.18/195,221.87 = 51,274.90/x
  3. Step 3: Cross multiply
    130,104.18x = 195,221.87 × 51,274.90
  4. Step 4: Simplify right side
    130,104.18x = 10,009,981,862.06
  5. Step 5: Solve for x
    x = 10,009,981,862.06/130,104.18
  6. Step 6: Final answer
    x = 76,938.20

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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.