Home / 199,396.28-299,150.91-81,152.48

Finding the Fourth Proportional to 199,396.28, 299,150.91 and 81,152.48

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Solution

The fourth proportional to 199,396.28, 299,150.91 and 81,152.48 is: 121,751.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,396.28 : 299,150.91 = 81,152.48 : x
  2. Step 2: Convert to fraction form
    199,396.28/299,150.91 = 81,152.48/x
  3. Step 3: Cross multiply
    199,396.28x = 299,150.91 × 81,152.48
  4. Step 4: Simplify right side
    199,396.28x = 24,276,838,240.76
  5. Step 5: Solve for x
    x = 24,276,838,240.76/199,396.28
  6. Step 6: Final answer
    x = 121,751.71

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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.