Home / 206,653.36-285,316.12-126,127.56

Finding the Fourth Proportional to 206,653.36, 285,316.12 and 126,127.56

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Solution

The fourth proportional to 206,653.36, 285,316.12 and 126,127.56 is: 174,138.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,653.36 : 285,316.12 = 126,127.56 : x
  2. Step 2: Convert to fraction form
    206,653.36/285,316.12 = 126,127.56/x
  3. Step 3: Cross multiply
    206,653.36x = 285,316.12 × 126,127.56
  4. Step 4: Simplify right side
    206,653.36x = 35,986,227,271.86
  5. Step 5: Solve for x
    x = 35,986,227,271.86/206,653.36
  6. Step 6: Final answer
    x = 174,138.12

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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.