Home / 109,150.72-150,630.43-66,732.64

Finding the Fourth Proportional to 109,150.72, 150,630.43 and 66,732.64

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Solution

The fourth proportional to 109,150.72, 150,630.43 and 66,732.64 is: 92,092.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,150.72 : 150,630.43 = 66,732.64 : x
  2. Step 2: Convert to fraction form
    109,150.72/150,630.43 = 66,732.64/x
  3. Step 3: Cross multiply
    109,150.72x = 150,630.43 × 66,732.64
  4. Step 4: Simplify right side
    109,150.72x = 10,051,965,505.08
  5. Step 5: Solve for x
    x = 10,051,965,505.08/109,150.72
  6. Step 6: Final answer
    x = 92,092.53

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1.5x scale

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.