Home / 100,142.24-150,159.48-40,140.60

Finding the Fourth Proportional to 100,142.24, 150,159.48 and 40,140.60

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Solution

The fourth proportional to 100,142.24, 150,159.48 and 40,140.60 is: 60,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,142.24 : 150,159.48 = 40,140.60 : x
  2. Step 2: Convert to fraction form
    100,142.24/150,159.48 = 40,140.60/x
  3. Step 3: Cross multiply
    100,142.24x = 150,159.48 × 40,140.60
  4. Step 4: Simplify right side
    100,142.24x = 6,027,491,622.89
  5. Step 5: Solve for x
    x = 6,027,491,622.89/100,142.24
  6. Step 6: Final answer
    x = 60,189.30

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1.5x scale

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.