Home / 140,721.36-194,177.70-112,113.59

Finding the Fourth Proportional to 140,721.36, 194,177.70 and 112,113.59

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Solution

The fourth proportional to 140,721.36, 194,177.70 and 112,113.59 is: 154,702.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,721.36 : 194,177.70 = 112,113.59 : x
  2. Step 2: Convert to fraction form
    140,721.36/194,177.70 = 112,113.59/x
  3. Step 3: Cross multiply
    140,721.36x = 194,177.70 × 112,113.59
  4. Step 4: Simplify right side
    140,721.36x = 21,769,958,074.05
  5. Step 5: Solve for x
    x = 21,769,958,074.05/140,721.36
  6. Step 6: Final answer
    x = 154,702.58

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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.