Home / 112,268.40-154,947.42-69,840.60

Finding the Fourth Proportional to 112,268.40, 154,947.42 and 69,840.60

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Solution

The fourth proportional to 112,268.40, 154,947.42 and 69,840.60 is: 96,390.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,268.40 : 154,947.42 = 69,840.60 : x
  2. Step 2: Convert to fraction form
    112,268.40/154,947.42 = 69,840.60/x
  3. Step 3: Cross multiply
    112,268.40x = 154,947.42 × 69,840.60
  4. Step 4: Simplify right side
    112,268.40x = 10,821,620,781.25
  5. Step 5: Solve for x
    x = 10,821,620,781.25/112,268.40
  6. Step 6: Final answer
    x = 96,390.62

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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.