Home / 109,278.84-163,797.96-42,706.56

Finding the Fourth Proportional to 109,278.84, 163,797.96 and 42,706.56

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Solution

The fourth proportional to 109,278.84, 163,797.96 and 42,706.56 is: 64,012.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,278.84 : 163,797.96 = 42,706.56 : x
  2. Step 2: Convert to fraction form
    109,278.84/163,797.96 = 42,706.56/x
  3. Step 3: Cross multiply
    109,278.84x = 163,797.96 × 42,706.56
  4. Step 4: Simplify right side
    109,278.84x = 6,995,247,406.62
  5. Step 5: Solve for x
    x = 6,995,247,406.62/109,278.84
  6. Step 6: Final answer
    x = 64,012.83

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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.