Home / 111,525.67-153,909.89-63,778.33

Finding the Fourth Proportional to 111,525.67, 153,909.89 and 63,778.33

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Solution

The fourth proportional to 111,525.67, 153,909.89 and 63,778.33 is: 88,016.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,525.67 : 153,909.89 = 63,778.33 : x
  2. Step 2: Convert to fraction form
    111,525.67/153,909.89 = 63,778.33/x
  3. Step 3: Cross multiply
    111,525.67x = 153,909.89 × 63,778.33
  4. Step 4: Simplify right side
    111,525.67x = 9,816,115,754.68
  5. Step 5: Solve for x
    x = 9,816,115,754.68/111,525.67
  6. Step 6: Final answer
    x = 88,016.65

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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.