Home / 130,686.40-195,511.20-113,348.80

Finding the Fourth Proportional to 130,686.40, 195,511.20 and 113,348.80

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Solution

The fourth proportional to 130,686.40, 195,511.20 and 113,348.80 is: 169,573.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,686.40 : 195,511.20 = 113,348.80 : x
  2. Step 2: Convert to fraction form
    130,686.40/195,511.20 = 113,348.80/x
  3. Step 3: Cross multiply
    130,686.40x = 195,511.20 × 113,348.80
  4. Step 4: Simplify right side
    130,686.40x = 22,160,959,906.56
  5. Step 5: Solve for x
    x = 22,160,959,906.56/130,686.40
  6. Step 6: Final answer
    x = 169,573.57

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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.