Home / 199,546.74-299,309.18-120,639.78

Finding the Fourth Proportional to 199,546.74, 299,309.18 and 120,639.78

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Solution

The fourth proportional to 199,546.74, 299,309.18 and 120,639.78 is: 180,953.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,546.74 : 299,309.18 = 120,639.78 : x
  2. Step 2: Convert to fraction form
    199,546.74/299,309.18 = 120,639.78/x
  3. Step 3: Cross multiply
    199,546.74x = 299,309.18 × 120,639.78
  4. Step 4: Simplify right side
    199,546.74x = 36,108,593,023.98
  5. Step 5: Solve for x
    x = 36,108,593,023.98/199,546.74
  6. Step 6: Final answer
    x = 180,953.06

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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.