Home / 101,330.80-151,996.20-31,231.60

Finding the Fourth Proportional to 101,330.80, 151,996.20 and 31,231.60

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Solution

The fourth proportional to 101,330.80, 151,996.20 and 31,231.60 is: 46,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,330.80 : 151,996.20 = 31,231.60 : x
  2. Step 2: Convert to fraction form
    101,330.80/151,996.20 = 31,231.60/x
  3. Step 3: Cross multiply
    101,330.80x = 151,996.20 × 31,231.60
  4. Step 4: Simplify right side
    101,330.80x = 4,747,084,519.92
  5. Step 5: Solve for x
    x = 4,747,084,519.92/101,330.80
  6. Step 6: Final answer
    x = 46,847.40

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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.