Home / 100,391.08-138,544.03-60,097.04

Finding the Fourth Proportional to 100,391.08, 138,544.03 and 60,097.04

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Solution

The fourth proportional to 100,391.08, 138,544.03 and 60,097.04 is: 82,936.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,391.08 : 138,544.03 = 60,097.04 : x
  2. Step 2: Convert to fraction form
    100,391.08/138,544.03 = 60,097.04/x
  3. Step 3: Cross multiply
    100,391.08x = 138,544.03 × 60,097.04
  4. Step 4: Simplify right side
    100,391.08x = 8,326,086,112.67
  5. Step 5: Solve for x
    x = 8,326,086,112.67/100,391.08
  6. Step 6: Final answer
    x = 82,936.51

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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.