Home / 112,216.78-168,348.12-45,656.38

Finding the Fourth Proportional to 112,216.78, 168,348.12 and 45,656.38

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Solution

The fourth proportional to 112,216.78, 168,348.12 and 45,656.38 is: 68,493.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,216.78 : 168,348.12 = 45,656.38 : x
  2. Step 2: Convert to fraction form
    112,216.78/168,348.12 = 45,656.38/x
  3. Step 3: Cross multiply
    112,216.78x = 168,348.12 × 45,656.38
  4. Step 4: Simplify right side
    112,216.78x = 7,686,165,739.01
  5. Step 5: Solve for x
    x = 7,686,165,739.01/112,216.78
  6. Step 6: Final answer
    x = 68,493.91

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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.