Home / 111,255.37-153,543.42-63,515.92

Finding the Fourth Proportional to 111,255.37, 153,543.42 and 63,515.92

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Solution

The fourth proportional to 111,255.37, 153,543.42 and 63,515.92 is: 87,658.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,255.37 : 153,543.42 = 63,515.92 : x
  2. Step 2: Convert to fraction form
    111,255.37/153,543.42 = 63,515.92/x
  3. Step 3: Cross multiply
    111,255.37x = 153,543.42 × 63,515.92
  4. Step 4: Simplify right side
    111,255.37x = 9,752,451,581.25
  5. Step 5: Solve for x
    x = 9,752,451,581.25/111,255.37
  6. Step 6: Final answer
    x = 87,658.25

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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.