Home / 100,027.08-150,069.78-40,851.72

Finding the Fourth Proportional to 100,027.08, 150,069.78 and 40,851.72

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Solution

The fourth proportional to 100,027.08, 150,069.78 and 40,851.72 is: 61,289.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,027.08 : 150,069.78 = 40,851.72 : x
  2. Step 2: Convert to fraction form
    100,027.08/150,069.78 = 40,851.72/x
  3. Step 3: Cross multiply
    100,027.08x = 150,069.78 × 40,851.72
  4. Step 4: Simplify right side
    100,027.08x = 6,130,608,633.02
  5. Step 5: Solve for x
    x = 6,130,608,633.02/100,027.08
  6. Step 6: Final answer
    x = 61,289.49

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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.