Home / 109,218.80-163,828.26-30,333.02

Finding the Fourth Proportional to 109,218.80, 163,828.26 and 30,333.02

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Solution

The fourth proportional to 109,218.80, 163,828.26 and 30,333.02 is: 45,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,218.80 : 163,828.26 = 30,333.02 : x
  2. Step 2: Convert to fraction form
    109,218.80/163,828.26 = 30,333.02/x
  3. Step 3: Cross multiply
    109,218.80x = 163,828.26 × 30,333.02
  4. Step 4: Simplify right side
    109,218.80x = 4,969,405,887.15
  5. Step 5: Solve for x
    x = 4,969,405,887.15/109,218.80
  6. Step 6: Final answer
    x = 45,499.55

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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.