Home / 83,137.08-114,496.14-77,800.92

Finding the Fourth Proportional to 83,137.08, 114,496.14 and 77,800.92

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Solution

The fourth proportional to 83,137.08, 114,496.14 and 77,800.92 is: 107,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,137.08 : 114,496.14 = 77,800.92 : x
  2. Step 2: Convert to fraction form
    83,137.08/114,496.14 = 77,800.92/x
  3. Step 3: Cross multiply
    83,137.08x = 114,496.14 × 77,800.92
  4. Step 4: Simplify right side
    83,137.08x = 8,907,905,028.45
  5. Step 5: Solve for x
    x = 8,907,905,028.45/83,137.08
  6. Step 6: Final answer
    x = 107,147.20

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1.5x scale

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.