Home / 113,786.87-156,993.51-68,442.16

Finding the Fourth Proportional to 113,786.87, 156,993.51 and 68,442.16

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Solution

The fourth proportional to 113,786.87, 156,993.51 and 68,442.16 is: 94,430.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,786.87 : 156,993.51 = 68,442.16 : x
  2. Step 2: Convert to fraction form
    113,786.87/156,993.51 = 68,442.16/x
  3. Step 3: Cross multiply
    113,786.87x = 156,993.51 × 68,442.16
  4. Step 4: Simplify right side
    113,786.87x = 10,744,974,537.90
  5. Step 5: Solve for x
    x = 10,744,974,537.90/113,786.87
  6. Step 6: Final answer
    x = 94,430.70

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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.