Home / 112,221.75-154,866.03-61,920.75

Finding the Fourth Proportional to 112,221.75, 154,866.03 and 61,920.75

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Solution

The fourth proportional to 112,221.75, 154,866.03 and 61,920.75 is: 85,450.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,221.75 : 154,866.03 = 61,920.75 : x
  2. Step 2: Convert to fraction form
    112,221.75/154,866.03 = 61,920.75/x
  3. Step 3: Cross multiply
    112,221.75x = 154,866.03 × 61,920.75
  4. Step 4: Simplify right side
    112,221.75x = 9,589,420,727.12
  5. Step 5: Solve for x
    x = 9,589,420,727.12/112,221.75
  6. Step 6: Final answer
    x = 85,450.64

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1.5x scale

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.