Home / 179,943.40-248,487.78-120,500.20

Finding the Fourth Proportional to 179,943.40, 248,487.78 and 120,500.20

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Solution

The fourth proportional to 179,943.40, 248,487.78 and 120,500.20 is: 166,401.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,943.40 : 248,487.78 = 120,500.20 : x
  2. Step 2: Convert to fraction form
    179,943.40/248,487.78 = 120,500.20/x
  3. Step 3: Cross multiply
    179,943.40x = 248,487.78 × 120,500.20
  4. Step 4: Simplify right side
    179,943.40x = 29,942,827,187.56
  5. Step 5: Solve for x
    x = 29,942,827,187.56/179,943.40
  6. Step 6: Final answer
    x = 166,401.36

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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.