Home / 127,923.80-191,900.10-39,176.60

Finding the Fourth Proportional to 127,923.80, 191,900.10 and 39,176.60

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Solution

The fourth proportional to 127,923.80, 191,900.10 and 39,176.60 is: 58,769.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,923.80 : 191,900.10 = 39,176.60 : x
  2. Step 2: Convert to fraction form
    127,923.80/191,900.10 = 39,176.60/x
  3. Step 3: Cross multiply
    127,923.80x = 191,900.10 × 39,176.60
  4. Step 4: Simplify right side
    127,923.80x = 7,517,993,457.66
  5. Step 5: Solve for x
    x = 7,517,993,457.66/127,923.80
  6. Step 6: Final answer
    x = 58,769.31

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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.