Home / 127,969.05-191,990.46-39,235.64

Finding the Fourth Proportional to 127,969.05, 191,990.46 and 39,235.64

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Solution

The fourth proportional to 127,969.05, 191,990.46 and 39,235.64 is: 58,864.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,969.05 : 191,990.46 = 39,235.64 : x
  2. Step 2: Convert to fraction form
    127,969.05/191,990.46 = 39,235.64/x
  3. Step 3: Cross multiply
    127,969.05x = 191,990.46 × 39,235.64
  4. Step 4: Simplify right side
    127,969.05x = 7,532,867,612.04
  5. Step 5: Solve for x
    x = 7,532,867,612.04/127,969.05
  6. Step 6: Final answer
    x = 58,864.76

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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.