Home / 130,688.40-195,514.20-113,350.80

Finding the Fourth Proportional to 130,688.40, 195,514.20 and 113,350.80

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Solution

The fourth proportional to 130,688.40, 195,514.20 and 113,350.80 is: 169,576.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,688.40 : 195,514.20 = 113,350.80 : x
  2. Step 2: Convert to fraction form
    130,688.40/195,514.20 = 113,350.80/x
  3. Step 3: Cross multiply
    130,688.40x = 195,514.20 × 113,350.80
  4. Step 4: Simplify right side
    130,688.40x = 22,161,690,981.36
  5. Step 5: Solve for x
    x = 22,161,690,981.36/130,688.40
  6. Step 6: Final answer
    x = 169,576.57

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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.