Home / 111,149.25-153,371.63-63,399.75

Finding the Fourth Proportional to 111,149.25, 153,371.63 and 63,399.75

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Solution

The fourth proportional to 111,149.25, 153,371.63 and 63,399.75 is: 87,483.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,149.25 : 153,371.63 = 63,399.75 : x
  2. Step 2: Convert to fraction form
    111,149.25/153,371.63 = 63,399.75/x
  3. Step 3: Cross multiply
    111,149.25x = 153,371.63 × 63,399.75
  4. Step 4: Simplify right side
    111,149.25x = 9,723,722,682.09
  5. Step 5: Solve for x
    x = 9,723,722,682.09/111,149.25
  6. Step 6: Final answer
    x = 87,483.48

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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.