Home / 111,245.24-153,529.44-63,505.76

Finding the Fourth Proportional to 111,245.24, 153,529.44 and 63,505.76

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Solution

The fourth proportional to 111,245.24, 153,529.44 and 63,505.76 is: 87,644.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,245.24 : 153,529.44 = 63,505.76 : x
  2. Step 2: Convert to fraction form
    111,245.24/153,529.44 = 63,505.76/x
  3. Step 3: Cross multiply
    111,245.24x = 153,529.44 × 63,505.76
  4. Step 4: Simplify right side
    111,245.24x = 9,750,003,769.57
  5. Step 5: Solve for x
    x = 9,750,003,769.57/111,245.24
  6. Step 6: Final answer
    x = 87,644.23

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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.