Home / 126,933.12-190,392-33,438.72

Finding the Fourth Proportional to 126,933.12, 190,392 and 33,438.72

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Solution

The fourth proportional to 126,933.12, 190,392 and 33,438.72 is: 50,156.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,933.12 : 190,392 = 33,438.72 : x
  2. Step 2: Convert to fraction form
    126,933.12/190,392 = 33,438.72/x
  3. Step 3: Cross multiply
    126,933.12x = 190,392 × 33,438.72
  4. Step 4: Simplify right side
    126,933.12x = 6,366,464,778.24
  5. Step 5: Solve for x
    x = 6,366,464,778.24/126,933.12
  6. Step 6: Final answer
    x = 50,156.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.