Home / 127,402.08-191,112.12-38,662.80

Finding the Fourth Proportional to 127,402.08, 191,112.12 and 38,662.80

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Solution

The fourth proportional to 127,402.08, 191,112.12 and 38,662.80 is: 57,996.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,402.08 : 191,112.12 = 38,662.80 : x
  2. Step 2: Convert to fraction form
    127,402.08/191,112.12 = 38,662.80/x
  3. Step 3: Cross multiply
    127,402.08x = 191,112.12 × 38,662.80
  4. Step 4: Simplify right side
    127,402.08x = 7,388,929,673.14
  5. Step 5: Solve for x
    x = 7,388,929,673.14/127,402.08
  6. Step 6: Final answer
    x = 57,996.93

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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.