Home / 150,621.78-207,856.28-82,639.34

Finding the Fourth Proportional to 150,621.78, 207,856.28 and 82,639.34

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Solution

The fourth proportional to 150,621.78, 207,856.28 and 82,639.34 is: 114,041.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,621.78 : 207,856.28 = 82,639.34 : x
  2. Step 2: Convert to fraction form
    150,621.78/207,856.28 = 82,639.34/x
  3. Step 3: Cross multiply
    150,621.78x = 207,856.28 × 82,639.34
  4. Step 4: Simplify right side
    150,621.78x = 17,177,105,275.99
  5. Step 5: Solve for x
    x = 17,177,105,275.99/150,621.78
  6. Step 6: Final answer
    x = 114,041.31

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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.