Home / 127,774.68-191,691.18-39,040.80

Finding the Fourth Proportional to 127,774.68, 191,691.18 and 39,040.80

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Solution

The fourth proportional to 127,774.68, 191,691.18 and 39,040.80 is: 58,570.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,774.68 : 191,691.18 = 39,040.80 : x
  2. Step 2: Convert to fraction form
    127,774.68/191,691.18 = 39,040.80/x
  3. Step 3: Cross multiply
    127,774.68x = 191,691.18 × 39,040.80
  4. Step 4: Simplify right side
    127,774.68x = 7,483,777,020.14
  5. Step 5: Solve for x
    x = 7,483,777,020.14/127,774.68
  6. Step 6: Final answer
    x = 58,570.11

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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.