Home / 101,120.42-151,659.79-47,789.73

Finding the Fourth Proportional to 101,120.42, 151,659.79 and 47,789.73

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Solution

The fourth proportional to 101,120.42, 151,659.79 and 47,789.73 is: 71,674.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,120.42 : 151,659.79 = 47,789.73 : x
  2. Step 2: Convert to fraction form
    101,120.42/151,659.79 = 47,789.73/x
  3. Step 3: Cross multiply
    101,120.42x = 151,659.79 × 47,789.73
  4. Step 4: Simplify right side
    101,120.42x = 7,247,780,296.48
  5. Step 5: Solve for x
    x = 7,247,780,296.48/101,120.42
  6. Step 6: Final answer
    x = 71,674.74

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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.