Home / 101,289.20-151,919.40-31,175.60

Finding the Fourth Proportional to 101,289.20, 151,919.40 and 31,175.60

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Solution

The fourth proportional to 101,289.20, 151,919.40 and 31,175.60 is: 46,758.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,289.20 : 151,919.40 = 31,175.60 : x
  2. Step 2: Convert to fraction form
    101,289.20/151,919.40 = 31,175.60/x
  3. Step 3: Cross multiply
    101,289.20x = 151,919.40 × 31,175.60
  4. Step 4: Simplify right side
    101,289.20x = 4,736,178,446.64
  5. Step 5: Solve for x
    x = 4,736,178,446.64/101,289.20
  6. Step 6: Final answer
    x = 46,758.97

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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.