Home / 150,171.49-207,216.19-89,729.36

Finding the Fourth Proportional to 150,171.49, 207,216.19 and 89,729.36

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Solution

The fourth proportional to 150,171.49, 207,216.19 and 89,729.36 is: 123,814.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,171.49 : 207,216.19 = 89,729.36 : x
  2. Step 2: Convert to fraction form
    150,171.49/207,216.19 = 89,729.36/x
  3. Step 3: Cross multiply
    150,171.49x = 207,216.19 × 89,729.36
  4. Step 4: Simplify right side
    150,171.49x = 18,593,376,110.34
  5. Step 5: Solve for x
    x = 18,593,376,110.34/150,171.49
  6. Step 6: Final answer
    x = 123,814.29

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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.