Home / 191,171.17-286,791.38-78,788.83

Finding the Fourth Proportional to 191,171.17, 286,791.38 and 78,788.83

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Solution

The fourth proportional to 191,171.17, 286,791.38 and 78,788.83 is: 118,197.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,171.17 : 286,791.38 = 78,788.83 : x
  2. Step 2: Convert to fraction form
    191,171.17/286,791.38 = 78,788.83/x
  3. Step 3: Cross multiply
    191,171.17x = 286,791.38 × 78,788.83
  4. Step 4: Simplify right side
    191,171.17x = 22,595,957,284.29
  5. Step 5: Solve for x
    x = 22,595,957,284.29/191,171.17
  6. Step 6: Final answer
    x = 118,197.52

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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.