Home / 134,338.88-185,400.72-100,288.24

Finding the Fourth Proportional to 134,338.88, 185,400.72 and 100,288.24

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Solution

The fourth proportional to 134,338.88, 185,400.72 and 100,288.24 is: 138,407.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,338.88 : 185,400.72 = 100,288.24 : x
  2. Step 2: Convert to fraction form
    134,338.88/185,400.72 = 100,288.24/x
  3. Step 3: Cross multiply
    134,338.88x = 185,400.72 × 100,288.24
  4. Step 4: Simplify right side
    134,338.88x = 18,593,511,903.53
  5. Step 5: Solve for x
    x = 18,593,511,903.53/134,338.88
  6. Step 6: Final answer
    x = 138,407.53

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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.