Home / 223,191.48-307,917-127,647.12

Finding the Fourth Proportional to 223,191.48, 307,917 and 127,647.12

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Solution

The fourth proportional to 223,191.48, 307,917 and 127,647.12 is: 176,103.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,191.48 : 307,917 = 127,647.12 : x
  2. Step 2: Convert to fraction form
    223,191.48/307,917 = 127,647.12/x
  3. Step 3: Cross multiply
    223,191.48x = 307,917 × 127,647.12
  4. Step 4: Simplify right side
    223,191.48x = 39,304,718,249.04
  5. Step 5: Solve for x
    x = 39,304,718,249.04/223,191.48
  6. Step 6: Final answer
    x = 176,103.13

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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.