Home / 109,433.96-150,997.86-66,401.66

Finding the Fourth Proportional to 109,433.96, 150,997.86 and 66,401.66

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Solution

The fourth proportional to 109,433.96, 150,997.86 and 66,401.66 is: 91,621.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,433.96 : 150,997.86 = 66,401.66 : x
  2. Step 2: Convert to fraction form
    109,433.96/150,997.86 = 66,401.66/x
  3. Step 3: Cross multiply
    109,433.96x = 150,997.86 × 66,401.66
  4. Step 4: Simplify right side
    109,433.96x = 10,026,508,560.45
  5. Step 5: Solve for x
    x = 10,026,508,560.45/109,433.96
  6. Step 6: Final answer
    x = 91,621.55

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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.