Home / 209,896.32-314,688.96-126,770.88

Finding the Fourth Proportional to 209,896.32, 314,688.96 and 126,770.88

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Solution

The fourth proportional to 209,896.32, 314,688.96 and 126,770.88 is: 190,062.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,896.32 : 314,688.96 = 126,770.88 : x
  2. Step 2: Convert to fraction form
    209,896.32/314,688.96 = 126,770.88/x
  3. Step 3: Cross multiply
    209,896.32x = 314,688.96 × 126,770.88
  4. Step 4: Simplify right side
    209,896.32x = 39,893,396,385.48
  5. Step 5: Solve for x
    x = 39,893,396,385.48/209,896.32
  6. Step 6: Final answer
    x = 190,062.39

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1.5x scale

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.