Home / 127,872.69-191,812.67-39,124.23

Finding the Fourth Proportional to 127,872.69, 191,812.67 and 39,124.23

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Solution

The fourth proportional to 127,872.69, 191,812.67 and 39,124.23 is: 58,687.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,872.69 : 191,812.67 = 39,124.23 : x
  2. Step 2: Convert to fraction form
    127,872.69/191,812.67 = 39,124.23/x
  3. Step 3: Cross multiply
    127,872.69x = 191,812.67 × 39,124.23
  4. Step 4: Simplify right side
    127,872.69x = 7,504,523,017.99
  5. Step 5: Solve for x
    x = 7,504,523,017.99/127,872.69
  6. Step 6: Final answer
    x = 58,687.46

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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.