Home / 100,711.30-151,176.30-63,313.60

Finding the Fourth Proportional to 100,711.30, 151,176.30 and 63,313.60

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Solution

The fourth proportional to 100,711.30, 151,176.30 and 63,313.60 is: 95,039.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,711.30 : 151,176.30 = 63,313.60 : x
  2. Step 2: Convert to fraction form
    100,711.30/151,176.30 = 63,313.60/x
  3. Step 3: Cross multiply
    100,711.30x = 151,176.30 × 63,313.60
  4. Step 4: Simplify right side
    100,711.30x = 9,571,515,787.68
  5. Step 5: Solve for x
    x = 9,571,515,787.68/100,711.30
  6. Step 6: Final answer
    x = 95,039.14

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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.