Home / 113,839.16-157,086.11-66,083.18

Finding the Fourth Proportional to 113,839.16, 157,086.11 and 66,083.18

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Solution

The fourth proportional to 113,839.16, 157,086.11 and 66,083.18 is: 91,187.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,839.16 : 157,086.11 = 66,083.18 : x
  2. Step 2: Convert to fraction form
    113,839.16/157,086.11 = 66,083.18/x
  3. Step 3: Cross multiply
    113,839.16x = 157,086.11 × 66,083.18
  4. Step 4: Simplify right side
    113,839.16x = 10,380,749,124.71
  5. Step 5: Solve for x
    x = 10,380,749,124.71/113,839.16
  6. Step 6: Final answer
    x = 91,187.86

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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.