Home / 208,112.21-287,200.58-126,412.84

Finding the Fourth Proportional to 208,112.21, 287,200.58 and 126,412.84

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Solution

The fourth proportional to 208,112.21, 287,200.58 and 126,412.84 is: 174,453.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,112.21 : 287,200.58 = 126,412.84 : x
  2. Step 2: Convert to fraction form
    208,112.21/287,200.58 = 126,412.84/x
  3. Step 3: Cross multiply
    208,112.21x = 287,200.58 × 126,412.84
  4. Step 4: Simplify right side
    208,112.21x = 36,305,840,967.45
  5. Step 5: Solve for x
    x = 36,305,840,967.45/208,112.21
  6. Step 6: Final answer
    x = 174,453.20

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1.5x scale

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.