Home / 109,083.60-163,624.80-30,197.28

Finding the Fourth Proportional to 109,083.60, 163,624.80 and 30,197.28

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Solution

The fourth proportional to 109,083.60, 163,624.80 and 30,197.28 is: 45,295.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,083.60 : 163,624.80 = 30,197.28 : x
  2. Step 2: Convert to fraction form
    109,083.60/163,624.80 = 30,197.28/x
  3. Step 3: Cross multiply
    109,083.60x = 163,624.80 × 30,197.28
  4. Step 4: Simplify right side
    109,083.60x = 4,941,023,900.54
  5. Step 5: Solve for x
    x = 4,941,023,900.54/109,083.60
  6. Step 6: Final answer
    x = 45,295.75

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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.