Home / 109,181.76-150,677.70-66,165.03

Finding the Fourth Proportional to 109,181.76, 150,677.70 and 66,165.03

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Solution

The fourth proportional to 109,181.76, 150,677.70 and 66,165.03 is: 91,311.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,181.76 : 150,677.70 = 66,165.03 : x
  2. Step 2: Convert to fraction form
    109,181.76/150,677.70 = 66,165.03/x
  3. Step 3: Cross multiply
    109,181.76x = 150,677.70 × 66,165.03
  4. Step 4: Simplify right side
    109,181.76x = 9,969,594,540.83
  5. Step 5: Solve for x
    x = 9,969,594,540.83/109,181.76
  6. Step 6: Final answer
    x = 91,311.91

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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.