Home / 127,721.39-191,582.09-38,975.36

Finding the Fourth Proportional to 127,721.39, 191,582.09 and 38,975.36

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Solution

The fourth proportional to 127,721.39, 191,582.09 and 38,975.36 is: 58,463.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,721.39 : 191,582.09 = 38,975.36 : x
  2. Step 2: Convert to fraction form
    127,721.39/191,582.09 = 38,975.36/x
  3. Step 3: Cross multiply
    127,721.39x = 191,582.09 × 38,975.36
  4. Step 4: Simplify right side
    127,721.39x = 7,466,980,732.43
  5. Step 5: Solve for x
    x = 7,466,980,732.43/127,721.39
  6. Step 6: Final answer
    x = 58,463.04

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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.