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Finding the Fourth Proportional to 150,695.40, 225,783.90 and 79,512.60

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Solution

The fourth proportional to 150,695.40, 225,783.90 and 79,512.60 is: 119,132.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,695.40 : 225,783.90 = 79,512.60 : x
  2. Step 2: Convert to fraction form
    150,695.40/225,783.90 = 79,512.60/x
  3. Step 3: Cross multiply
    150,695.40x = 225,783.90 × 79,512.60
  4. Step 4: Simplify right side
    150,695.40x = 17,952,664,927.14
  5. Step 5: Solve for x
    x = 17,952,664,927.14/150,695.40
  6. Step 6: Final answer
    x = 119,132.14

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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.