Home / 225,756.20-311,557.57-125,154.20

Finding the Fourth Proportional to 225,756.20, 311,557.57 and 125,154.20

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Solution

The fourth proportional to 225,756.20, 311,557.57 and 125,154.20 is: 172,720.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,756.20 : 311,557.57 = 125,154.20 : x
  2. Step 2: Convert to fraction form
    225,756.20/311,557.57 = 125,154.20/x
  3. Step 3: Cross multiply
    225,756.20x = 311,557.57 × 125,154.20
  4. Step 4: Simplify right side
    225,756.20x = 38,992,738,893.30
  5. Step 5: Solve for x
    x = 38,992,738,893.30/225,756.20
  6. Step 6: Final answer
    x = 172,720.57

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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.