Home / 111,078.75-153,288.68-60,777.75

Finding the Fourth Proportional to 111,078.75, 153,288.68 and 60,777.75

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Solution

The fourth proportional to 111,078.75, 153,288.68 and 60,777.75 is: 83,873.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,078.75 : 153,288.68 = 60,777.75 : x
  2. Step 2: Convert to fraction form
    111,078.75/153,288.68 = 60,777.75/x
  3. Step 3: Cross multiply
    111,078.75x = 153,288.68 × 60,777.75
  4. Step 4: Simplify right side
    111,078.75x = 9,316,540,766.98
  5. Step 5: Solve for x
    x = 9,316,540,766.98/111,078.75
  6. Step 6: Final answer
    x = 83,873.30

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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.