Home / 111,588.45-153,991.56-60,600.78

Finding the Fourth Proportional to 111,588.45, 153,991.56 and 60,600.78

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Solution

The fourth proportional to 111,588.45, 153,991.56 and 60,600.78 is: 83,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,588.45 : 153,991.56 = 60,600.78 : x
  2. Step 2: Convert to fraction form
    111,588.45/153,991.56 = 60,600.78/x
  3. Step 3: Cross multiply
    111,588.45x = 153,991.56 × 60,600.78
  4. Step 4: Simplify right side
    111,588.45x = 9,332,008,649.42
  5. Step 5: Solve for x
    x = 9,332,008,649.42/111,588.45
  6. Step 6: Final answer
    x = 83,628.80

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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.