Home / 127,555.80-191,333.70-112,793.55

Finding the Fourth Proportional to 127,555.80, 191,333.70 and 112,793.55

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Solution

The fourth proportional to 127,555.80, 191,333.70 and 112,793.55 is: 169,190.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,555.80 : 191,333.70 = 112,793.55 : x
  2. Step 2: Convert to fraction form
    127,555.80/191,333.70 = 112,793.55/x
  3. Step 3: Cross multiply
    127,555.80x = 191,333.70 × 112,793.55
  4. Step 4: Simplify right side
    127,555.80x = 21,581,207,257.64
  5. Step 5: Solve for x
    x = 21,581,207,257.64/127,555.80
  6. Step 6: Final answer
    x = 169,190.33

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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.