Home / 223,011.12-307,755.21-126,213.19

Finding the Fourth Proportional to 223,011.12, 307,755.21 and 126,213.19

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Solution

The fourth proportional to 223,011.12, 307,755.21 and 126,213.19 is: 174,174.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,011.12 : 307,755.21 = 126,213.19 : x
  2. Step 2: Convert to fraction form
    223,011.12/307,755.21 = 126,213.19/x
  3. Step 3: Cross multiply
    223,011.12x = 307,755.21 × 126,213.19
  4. Step 4: Simplify right side
    223,011.12x = 38,842,766,793.22
  5. Step 5: Solve for x
    x = 38,842,766,793.22/223,011.12
  6. Step 6: Final answer
    x = 174,174.13

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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.