Home / 121,150.20-181,725.30-83,825.40

Finding the Fourth Proportional to 121,150.20, 181,725.30 and 83,825.40

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Solution

The fourth proportional to 121,150.20, 181,725.30 and 83,825.40 is: 125,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,150.20 : 181,725.30 = 83,825.40 : x
  2. Step 2: Convert to fraction form
    121,150.20/181,725.30 = 83,825.40/x
  3. Step 3: Cross multiply
    121,150.20x = 181,725.30 × 83,825.40
  4. Step 4: Simplify right side
    121,150.20x = 15,233,195,962.62
  5. Step 5: Solve for x
    x = 15,233,195,962.62/121,150.20
  6. Step 6: Final answer
    x = 125,738.10

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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.