Home / 111,015.86-153,198.75-60,713.78

Finding the Fourth Proportional to 111,015.86, 153,198.75 and 60,713.78

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Solution

The fourth proportional to 111,015.86, 153,198.75 and 60,713.78 is: 83,783.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,015.86 : 153,198.75 = 60,713.78 : x
  2. Step 2: Convert to fraction form
    111,015.86/153,198.75 = 60,713.78/x
  3. Step 3: Cross multiply
    111,015.86x = 153,198.75 × 60,713.78
  4. Step 4: Simplify right side
    111,015.86x = 9,301,275,203.78
  5. Step 5: Solve for x
    x = 9,301,275,203.78/111,015.86
  6. Step 6: Final answer
    x = 83,783.30

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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.