Home / 191,112.97-286,704.06-78,730.73

Finding the Fourth Proportional to 191,112.97, 286,704.06 and 78,730.73

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Solution

The fourth proportional to 191,112.97, 286,704.06 and 78,730.73 is: 118,110.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,112.97 : 286,704.06 = 78,730.73 : x
  2. Step 2: Convert to fraction form
    191,112.97/286,704.06 = 78,730.73/x
  3. Step 3: Cross multiply
    191,112.97x = 286,704.06 × 78,730.73
  4. Step 4: Simplify right side
    191,112.97x = 22,572,420,896.85
  5. Step 5: Solve for x
    x = 22,572,420,896.85/191,112.97
  6. Step 6: Final answer
    x = 118,110.36

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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.