Home / 70,724.34-106,078.59-18,135.06

Finding the Fourth Proportional to 70,724.34, 106,078.59 and 18,135.06

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Solution

The fourth proportional to 70,724.34, 106,078.59 and 18,135.06 is: 27,200.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,724.34 : 106,078.59 = 18,135.06 : x
  2. Step 2: Convert to fraction form
    70,724.34/106,078.59 = 18,135.06/x
  3. Step 3: Cross multiply
    70,724.34x = 106,078.59 × 18,135.06
  4. Step 4: Simplify right side
    70,724.34x = 1,923,741,594.37
  5. Step 5: Solve for x
    x = 1,923,741,594.37/70,724.34
  6. Step 6: Final answer
    x = 27,200.56

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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.