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Finding the Fourth Proportional to 110,398.87, 165,622.88 and 40,278.16

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Solution

The fourth proportional to 110,398.87, 165,622.88 and 40,278.16 is: 60,426.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,398.87 : 165,622.88 = 40,278.16 : x
  2. Step 2: Convert to fraction form
    110,398.87/165,622.88 = 40,278.16/x
  3. Step 3: Cross multiply
    110,398.87x = 165,622.88 × 40,278.16
  4. Step 4: Simplify right side
    110,398.87x = 6,670,984,860.30
  5. Step 5: Solve for x
    x = 6,670,984,860.30/110,398.87
  6. Step 6: Final answer
    x = 60,426.21

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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.