Home / 145,469.28-218,179.12-40,263.60

Finding the Fourth Proportional to 145,469.28, 218,179.12 and 40,263.60

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Solution

The fourth proportional to 145,469.28, 218,179.12 and 40,263.60 is: 60,388.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,469.28 : 218,179.12 = 40,263.60 : x
  2. Step 2: Convert to fraction form
    145,469.28/218,179.12 = 40,263.60/x
  3. Step 3: Cross multiply
    145,469.28x = 218,179.12 × 40,263.60
  4. Step 4: Simplify right side
    145,469.28x = 8,784,676,816.03
  5. Step 5: Solve for x
    x = 8,784,676,816.03/145,469.28
  6. Step 6: Final answer
    x = 60,388.54

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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.