Home / 150,699.40-207,963.86-82,719.23

Finding the Fourth Proportional to 150,699.40, 207,963.86 and 82,719.23

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Solution

The fourth proportional to 150,699.40, 207,963.86 and 82,719.23 is: 114,151.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,699.40 : 207,963.86 = 82,719.23 : x
  2. Step 2: Convert to fraction form
    150,699.40/207,963.86 = 82,719.23/x
  3. Step 3: Cross multiply
    150,699.40x = 207,963.86 × 82,719.23
  4. Step 4: Simplify right side
    150,699.40x = 17,202,608,913.61
  5. Step 5: Solve for x
    x = 17,202,608,913.61/150,699.40
  6. Step 6: Final answer
    x = 114,151.81

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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.