Home / 185,962.76-278,786.94-80,702.60

Finding the Fourth Proportional to 185,962.76, 278,786.94 and 80,702.60

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Solution

The fourth proportional to 185,962.76, 278,786.94 and 80,702.60 is: 120,985.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,962.76 : 278,786.94 = 80,702.60 : x
  2. Step 2: Convert to fraction form
    185,962.76/278,786.94 = 80,702.60/x
  3. Step 3: Cross multiply
    185,962.76x = 278,786.94 × 80,702.60
  4. Step 4: Simplify right side
    185,962.76x = 22,498,830,904.04
  5. Step 5: Solve for x
    x = 22,498,830,904.04/185,962.76
  6. Step 6: Final answer
    x = 120,985.68

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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.