Home / 191,171.67-286,792.14-78,789.33

Finding the Fourth Proportional to 191,171.67, 286,792.14 and 78,789.33

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Solution

The fourth proportional to 191,171.67, 286,792.14 and 78,789.33 is: 118,198.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,171.67 : 286,792.14 = 78,789.33 : x
  2. Step 2: Convert to fraction form
    191,171.67/286,792.14 = 78,789.33/x
  3. Step 3: Cross multiply
    191,171.67x = 286,792.14 × 78,789.33
  4. Step 4: Simplify right side
    191,171.67x = 22,596,160,559.87
  5. Step 5: Solve for x
    x = 22,596,160,559.87/191,171.67
  6. Step 6: Final answer
    x = 118,198.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.