Home / 109,282.62-163,965.22-42,770.28

Finding the Fourth Proportional to 109,282.62, 163,965.22 and 42,770.28

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Solution

The fourth proportional to 109,282.62, 163,965.22 and 42,770.28 is: 64,171.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,282.62 : 163,965.22 = 42,770.28 : x
  2. Step 2: Convert to fraction form
    109,282.62/163,965.22 = 42,770.28/x
  3. Step 3: Cross multiply
    109,282.62x = 163,965.22 × 42,770.28
  4. Step 4: Simplify right side
    109,282.62x = 7,012,838,369.66
  5. Step 5: Solve for x
    x = 7,012,838,369.66/109,282.62
  6. Step 6: Final answer
    x = 64,171.58

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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.