Home / 111,195.75-153,444.05-65,249.23

Finding the Fourth Proportional to 111,195.75, 153,444.05 and 65,249.23

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Solution

The fourth proportional to 111,195.75, 153,444.05 and 65,249.23 is: 90,040.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,195.75 : 153,444.05 = 65,249.23 : x
  2. Step 2: Convert to fraction form
    111,195.75/153,444.05 = 65,249.23/x
  3. Step 3: Cross multiply
    111,195.75x = 153,444.05 × 65,249.23
  4. Step 4: Simplify right side
    111,195.75x = 10,012,106,110.58
  5. Step 5: Solve for x
    x = 10,012,106,110.58/111,195.75
  6. Step 6: Final answer
    x = 90,040.37

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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.