Home / 109,747.12-164,626.80-30,855.20

Finding the Fourth Proportional to 109,747.12, 164,626.80 and 30,855.20

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Solution

The fourth proportional to 109,747.12, 164,626.80 and 30,855.20 is: 46,284.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,747.12 : 164,626.80 = 30,855.20 : x
  2. Step 2: Convert to fraction form
    109,747.12/164,626.80 = 30,855.20/x
  3. Step 3: Cross multiply
    109,747.12x = 164,626.80 × 30,855.20
  4. Step 4: Simplify right side
    109,747.12x = 5,079,592,839.36
  5. Step 5: Solve for x
    x = 5,079,592,839.36/109,747.12
  6. Step 6: Final answer
    x = 46,284.52

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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.