Home / 208,076.12-287,114.25-126,361.88

Finding the Fourth Proportional to 208,076.12, 287,114.25 and 126,361.88

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Solution

The fourth proportional to 208,076.12, 287,114.25 and 126,361.88 is: 174,360.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,076.12 : 287,114.25 = 126,361.88 : x
  2. Step 2: Convert to fraction form
    208,076.12/287,114.25 = 126,361.88/x
  3. Step 3: Cross multiply
    208,076.12x = 287,114.25 × 126,361.88
  4. Step 4: Simplify right side
    208,076.12x = 36,280,295,285.12
  5. Step 5: Solve for x
    x = 36,280,295,285.12/208,076.12
  6. Step 6: Final answer
    x = 174,360.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.