Home / 115,107.20-158,847.36-64,806.56

Finding the Fourth Proportional to 115,107.20, 158,847.36 and 64,806.56

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Solution

The fourth proportional to 115,107.20, 158,847.36 and 64,806.56 is: 89,432.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,107.20 : 158,847.36 = 64,806.56 : x
  2. Step 2: Convert to fraction form
    115,107.20/158,847.36 = 64,806.56/x
  3. Step 3: Cross multiply
    115,107.20x = 158,847.36 × 64,806.56
  4. Step 4: Simplify right side
    115,107.20x = 10,294,350,966.68
  5. Step 5: Solve for x
    x = 10,294,350,966.68/115,107.20
  6. Step 6: Final answer
    x = 89,432.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.