Home / 130,765.20-195,960.66-74,489.18

Finding the Fourth Proportional to 130,765.20, 195,960.66 and 74,489.18

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Solution

The fourth proportional to 130,765.20, 195,960.66 and 74,489.18 is: 111,627.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,765.20 : 195,960.66 = 74,489.18 : x
  2. Step 2: Convert to fraction form
    130,765.20/195,960.66 = 74,489.18/x
  3. Step 3: Cross multiply
    130,765.20x = 195,960.66 × 74,489.18
  4. Step 4: Simplify right side
    130,765.20x = 14,596,947,895.86
  5. Step 5: Solve for x
    x = 14,596,947,895.86/130,765.20
  6. Step 6: Final answer
    x = 111,627.16

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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.