Home / 112,062.80-167,867.40-69,813.20

Finding the Fourth Proportional to 112,062.80, 167,867.40 and 69,813.20

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Solution

The fourth proportional to 112,062.80, 167,867.40 and 69,813.20 is: 104,578.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,062.80 : 167,867.40 = 69,813.20 : x
  2. Step 2: Convert to fraction form
    112,062.80/167,867.40 = 69,813.20/x
  3. Step 3: Cross multiply
    112,062.80x = 167,867.40 × 69,813.20
  4. Step 4: Simplify right side
    112,062.80x = 11,719,360,369.68
  5. Step 5: Solve for x
    x = 11,719,360,369.68/112,062.80
  6. Step 6: Final answer
    x = 104,578.51

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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.