Home / 84,845.70-127,268.55-71,723.70

Finding the Fourth Proportional to 84,845.70, 127,268.55 and 71,723.70

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Solution

The fourth proportional to 84,845.70, 127,268.55 and 71,723.70 is: 107,585.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,845.70 : 127,268.55 = 71,723.70 : x
  2. Step 2: Convert to fraction form
    84,845.70/127,268.55 = 71,723.70/x
  3. Step 3: Cross multiply
    84,845.70x = 127,268.55 × 71,723.70
  4. Step 4: Simplify right side
    84,845.70x = 9,128,171,299.64
  5. Step 5: Solve for x
    x = 9,128,171,299.64/84,845.70
  6. Step 6: Final answer
    x = 107,585.55

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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.