Home / 154,113.36-231,217.26-138,217.92

Finding the Fourth Proportional to 154,113.36, 231,217.26 and 138,217.92

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Solution

The fourth proportional to 154,113.36, 231,217.26 and 138,217.92 is: 207,369.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,113.36 : 231,217.26 = 138,217.92 : x
  2. Step 2: Convert to fraction form
    154,113.36/231,217.26 = 138,217.92/x
  3. Step 3: Cross multiply
    154,113.36x = 231,217.26 × 138,217.92
  4. Step 4: Simplify right side
    154,113.36x = 31,958,368,745.30
  5. Step 5: Solve for x
    x = 31,958,368,745.30/154,113.36
  6. Step 6: Final answer
    x = 207,369.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.