Home / 185,390.15-278,165.37-78,797.52

Finding the Fourth Proportional to 185,390.15, 278,165.37 and 78,797.52

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Solution

The fourth proportional to 185,390.15, 278,165.37 and 78,797.52 is: 118,230.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,390.15 : 278,165.37 = 78,797.52 : x
  2. Step 2: Convert to fraction form
    185,390.15/278,165.37 = 78,797.52/x
  3. Step 3: Cross multiply
    185,390.15x = 278,165.37 × 78,797.52
  4. Step 4: Simplify right side
    185,390.15x = 21,918,741,305.88
  5. Step 5: Solve for x
    x = 21,918,741,305.88/185,390.15
  6. Step 6: Final answer
    x = 118,230.35

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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.