Home / 205,182.56-307,207.04-105,127.31

Finding the Fourth Proportional to 205,182.56, 307,207.04 and 105,127.31

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Solution

The fourth proportional to 205,182.56, 307,207.04 and 105,127.31 is: 157,400.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,182.56 : 307,207.04 = 105,127.31 : x
  2. Step 2: Convert to fraction form
    205,182.56/307,207.04 = 105,127.31/x
  3. Step 3: Cross multiply
    205,182.56x = 307,207.04 × 105,127.31
  4. Step 4: Simplify right side
    205,182.56x = 32,295,847,666.59
  5. Step 5: Solve for x
    x = 32,295,847,666.59/205,182.56
  6. Step 6: Final answer
    x = 157,400.55

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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.