Home / 112,138.27-168,277.43-45,578.37

Finding the Fourth Proportional to 112,138.27, 168,277.43 and 45,578.37

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Solution

The fourth proportional to 112,138.27, 168,277.43 and 45,578.37 is: 68,396.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,138.27 : 168,277.43 = 45,578.37 : x
  2. Step 2: Convert to fraction form
    112,138.27/168,277.43 = 45,578.37/x
  3. Step 3: Cross multiply
    112,138.27x = 168,277.43 × 45,578.37
  4. Step 4: Simplify right side
    112,138.27x = 7,669,811,712.18
  5. Step 5: Solve for x
    x = 7,669,811,712.18/112,138.27
  6. Step 6: Final answer
    x = 68,396.02

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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.