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Finding the Fourth Proportional to 109,203.20, 163,804.80 and 35,331.20

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Solution

The fourth proportional to 109,203.20, 163,804.80 and 35,331.20 is: 52,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,203.20 : 163,804.80 = 35,331.20 : x
  2. Step 2: Convert to fraction form
    109,203.20/163,804.80 = 35,331.20/x
  3. Step 3: Cross multiply
    109,203.20x = 163,804.80 × 35,331.20
  4. Step 4: Simplify right side
    109,203.20x = 5,787,420,149.76
  5. Step 5: Solve for x
    x = 5,787,420,149.76/109,203.20
  6. Step 6: Final answer
    x = 52,996.80

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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.