Home / 185,427.36-278,071.20-67,069.44

Finding the Fourth Proportional to 185,427.36, 278,071.20 and 67,069.44

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Solution

The fourth proportional to 185,427.36, 278,071.20 and 67,069.44 is: 100,578.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,427.36 : 278,071.20 = 67,069.44 : x
  2. Step 2: Convert to fraction form
    185,427.36/278,071.20 = 67,069.44/x
  3. Step 3: Cross multiply
    185,427.36x = 278,071.20 × 67,069.44
  4. Step 4: Simplify right side
    185,427.36x = 18,650,079,664.13
  5. Step 5: Solve for x
    x = 18,650,079,664.13/185,427.36
  6. Step 6: Final answer
    x = 100,578.90

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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.