Home / 185,962.47-278,946.78-80,781.45

Finding the Fourth Proportional to 185,962.47, 278,946.78 and 80,781.45

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Solution

The fourth proportional to 185,962.47, 278,946.78 and 80,781.45 is: 121,173.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,962.47 : 278,946.78 = 80,781.45 : x
  2. Step 2: Convert to fraction form
    185,962.47/278,946.78 = 80,781.45/x
  3. Step 3: Cross multiply
    185,962.47x = 278,946.78 × 80,781.45
  4. Step 4: Simplify right side
    185,962.47x = 22,533,725,361.23
  5. Step 5: Solve for x
    x = 22,533,725,361.23/185,962.47
  6. Step 6: Final answer
    x = 121,173.51

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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.