Home / 155,632.85-214,794.20-91,121.75

Finding the Fourth Proportional to 155,632.85, 214,794.20 and 91,121.75

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Solution

The fourth proportional to 155,632.85, 214,794.20 and 91,121.75 is: 125,760.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,632.85 : 214,794.20 = 91,121.75 : x
  2. Step 2: Convert to fraction form
    155,632.85/214,794.20 = 91,121.75/x
  3. Step 3: Cross multiply
    155,632.85x = 214,794.20 × 91,121.75
  4. Step 4: Simplify right side
    155,632.85x = 19,572,422,938.24
  5. Step 5: Solve for x
    x = 19,572,422,938.24/155,632.85
  6. Step 6: Final answer
    x = 125,760.23

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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.