Home / 74,126.76-111,189.16-17,967.36

Finding the Fourth Proportional to 74,126.76, 111,189.16 and 17,967.36

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Solution

The fourth proportional to 74,126.76, 111,189.16 and 17,967.36 is: 26,950.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,126.76 : 111,189.16 = 17,967.36 : x
  2. Step 2: Convert to fraction form
    74,126.76/111,189.16 = 17,967.36/x
  3. Step 3: Cross multiply
    74,126.76x = 111,189.16 × 17,967.36
  4. Step 4: Simplify right side
    74,126.76x = 1,997,775,665.82
  5. Step 5: Solve for x
    x = 1,997,775,665.82/74,126.76
  6. Step 6: Final answer
    x = 26,950.80

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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.