Home / 150,540.28-207,574.32-123,229.51

Finding the Fourth Proportional to 150,540.28, 207,574.32 and 123,229.51

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Solution

The fourth proportional to 150,540.28, 207,574.32 and 123,229.51 is: 169,916.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,540.28 : 207,574.32 = 123,229.51 : x
  2. Step 2: Convert to fraction form
    150,540.28/207,574.32 = 123,229.51/x
  3. Step 3: Cross multiply
    150,540.28x = 207,574.32 × 123,229.51
  4. Step 4: Simplify right side
    150,540.28x = 25,579,281,742.18
  5. Step 5: Solve for x
    x = 25,579,281,742.18/150,540.28
  6. Step 6: Final answer
    x = 169,916.53

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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.