Home / 112,535.78-168,616.23-79,185.77

Finding the Fourth Proportional to 112,535.78, 168,616.23 and 79,185.77

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Solution

The fourth proportional to 112,535.78, 168,616.23 and 79,185.77 is: 118,646.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,535.78 : 168,616.23 = 79,185.77 : x
  2. Step 2: Convert to fraction form
    112,535.78/168,616.23 = 79,185.77/x
  3. Step 3: Cross multiply
    112,535.78x = 168,616.23 × 79,185.77
  4. Step 4: Simplify right side
    112,535.78x = 13,352,006,007.05
  5. Step 5: Solve for x
    x = 13,352,006,007.05/112,535.78
  6. Step 6: Final answer
    x = 118,646.76

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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.