Home / 116,800.12-161,179.50-69,081.40

Finding the Fourth Proportional to 116,800.12, 161,179.50 and 69,081.40

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Solution

The fourth proportional to 116,800.12, 161,179.50 and 69,081.40 is: 95,329.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,800.12 : 161,179.50 = 69,081.40 : x
  2. Step 2: Convert to fraction form
    116,800.12/161,179.50 = 69,081.40/x
  3. Step 3: Cross multiply
    116,800.12x = 161,179.50 × 69,081.40
  4. Step 4: Simplify right side
    116,800.12x = 11,134,505,511.30
  5. Step 5: Solve for x
    x = 11,134,505,511.30/116,800.12
  6. Step 6: Final answer
    x = 95,329.57

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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.