Home / 121,622.20-182,433.30-99,752.20

Finding the Fourth Proportional to 121,622.20, 182,433.30 and 99,752.20

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Solution

The fourth proportional to 121,622.20, 182,433.30 and 99,752.20 is: 149,628.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,622.20 : 182,433.30 = 99,752.20 : x
  2. Step 2: Convert to fraction form
    121,622.20/182,433.30 = 99,752.20/x
  3. Step 3: Cross multiply
    121,622.20x = 182,433.30 × 99,752.20
  4. Step 4: Simplify right side
    121,622.20x = 18,198,123,028.26
  5. Step 5: Solve for x
    x = 18,198,123,028.26/121,622.20
  6. Step 6: Final answer
    x = 149,628.30

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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.