Home / 111,913.26-153,749.48-100,132.62

Finding the Fourth Proportional to 111,913.26, 153,749.48 and 100,132.62

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Solution

The fourth proportional to 111,913.26, 153,749.48 and 100,132.62 is: 137,564.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,913.26 : 153,749.48 = 100,132.62 : x
  2. Step 2: Convert to fraction form
    111,913.26/153,749.48 = 100,132.62/x
  3. Step 3: Cross multiply
    111,913.26x = 153,749.48 × 100,132.62
  4. Step 4: Simplify right side
    111,913.26x = 15,395,337,755.37
  5. Step 5: Solve for x
    x = 15,395,337,755.37/111,913.26
  6. Step 6: Final answer
    x = 137,564.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.