Home / 126,089.23-188,210.94-111,142.91

Finding the Fourth Proportional to 126,089.23, 188,210.94 and 111,142.91

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Solution

The fourth proportional to 126,089.23, 188,210.94 and 111,142.91 is: 165,900.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,089.23 : 188,210.94 = 111,142.91 : x
  2. Step 2: Convert to fraction form
    126,089.23/188,210.94 = 111,142.91/x
  3. Step 3: Cross multiply
    126,089.23x = 188,210.94 × 111,142.91
  4. Step 4: Simplify right side
    126,089.23x = 20,918,311,565.44
  5. Step 5: Solve for x
    x = 20,918,311,565.44/126,089.23
  6. Step 6: Final answer
    x = 165,900.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.