Home / 100,867.06-151,320.64-34,289.31

Finding the Fourth Proportional to 100,867.06, 151,320.64 and 34,289.31

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Solution

The fourth proportional to 100,867.06, 151,320.64 and 34,289.31 is: 51,440.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,867.06 : 151,320.64 = 34,289.31 : x
  2. Step 2: Convert to fraction form
    100,867.06/151,320.64 = 34,289.31/x
  3. Step 3: Cross multiply
    100,867.06x = 151,320.64 × 34,289.31
  4. Step 4: Simplify right side
    100,867.06x = 5,188,680,334.36
  5. Step 5: Solve for x
    x = 5,188,680,334.36/100,867.06
  6. Step 6: Final answer
    x = 51,440.78

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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.