Home / 113,789.22-157,083.75-66,034.86

Finding the Fourth Proportional to 113,789.22, 157,083.75 and 66,034.86

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Solution

The fourth proportional to 113,789.22, 157,083.75 and 66,034.86 is: 91,159.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,789.22 : 157,083.75 = 66,034.86 : x
  2. Step 2: Convert to fraction form
    113,789.22/157,083.75 = 66,034.86/x
  3. Step 3: Cross multiply
    113,789.22x = 157,083.75 × 66,034.86
  4. Step 4: Simplify right side
    113,789.22x = 10,373,003,439.53
  5. Step 5: Solve for x
    x = 10,373,003,439.53/113,789.22
  6. Step 6: Final answer
    x = 91,159.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.