Home / 105,388.20-145,439.46-60,073.02

Finding the Fourth Proportional to 105,388.20, 145,439.46 and 60,073.02

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Solution

The fourth proportional to 105,388.20, 145,439.46 and 60,073.02 is: 82,902.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,388.20 : 145,439.46 = 60,073.02 : x
  2. Step 2: Convert to fraction form
    105,388.20/145,439.46 = 60,073.02/x
  3. Step 3: Cross multiply
    105,388.20x = 145,439.46 × 60,073.02
  4. Step 4: Simplify right side
    105,388.20x = 8,736,987,589.37
  5. Step 5: Solve for x
    x = 8,736,987,589.37/105,388.20
  6. Step 6: Final answer
    x = 82,902.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.