Home / 198,972.32-298,309.32-120,068

Finding the Fourth Proportional to 198,972.32, 298,309.32 and 120,068

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Solution

The fourth proportional to 198,972.32, 298,309.32 and 120,068 is: 180,011.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,972.32 : 298,309.32 = 120,068 : x
  2. Step 2: Convert to fraction form
    198,972.32/298,309.32 = 120,068/x
  3. Step 3: Cross multiply
    198,972.32x = 298,309.32 × 120,068
  4. Step 4: Simplify right side
    198,972.32x = 35,817,403,433.76
  5. Step 5: Solve for x
    x = 35,817,403,433.76/198,972.32
  6. Step 6: Final answer
    x = 180,011.99

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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.