Home / 150,643.28-207,880.68-82,658.72

Finding the Fourth Proportional to 150,643.28, 207,880.68 and 82,658.72

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Solution

The fourth proportional to 150,643.28, 207,880.68 and 82,658.72 is: 114,065.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,643.28 : 207,880.68 = 82,658.72 : x
  2. Step 2: Convert to fraction form
    150,643.28/207,880.68 = 82,658.72/x
  3. Step 3: Cross multiply
    150,643.28x = 207,880.68 × 82,658.72
  4. Step 4: Simplify right side
    150,643.28x = 17,183,150,921.53
  5. Step 5: Solve for x
    x = 17,183,150,921.53/150,643.28
  6. Step 6: Final answer
    x = 114,065.17

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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.