Home / 100,519.20-150,560.10-61,007.40

Finding the Fourth Proportional to 100,519.20, 150,560.10 and 61,007.40

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Solution

The fourth proportional to 100,519.20, 150,560.10 and 61,007.40 is: 91,378.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,519.20 : 150,560.10 = 61,007.40 : x
  2. Step 2: Convert to fraction form
    100,519.20/150,560.10 = 61,007.40/x
  3. Step 3: Cross multiply
    100,519.20x = 150,560.10 × 61,007.40
  4. Step 4: Simplify right side
    100,519.20x = 9,185,280,244.74
  5. Step 5: Solve for x
    x = 9,185,280,244.74/100,519.20
  6. Step 6: Final answer
    x = 91,378.37

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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.