Home / 99,706.48-137,508.24-86,273.44

Finding the Fourth Proportional to 99,706.48, 137,508.24 and 86,273.44

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Solution

The fourth proportional to 99,706.48, 137,508.24 and 86,273.44 is: 118,982.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,706.48 : 137,508.24 = 86,273.44 : x
  2. Step 2: Convert to fraction form
    99,706.48/137,508.24 = 86,273.44/x
  3. Step 3: Cross multiply
    99,706.48x = 137,508.24 × 86,273.44
  4. Step 4: Simplify right side
    99,706.48x = 11,863,308,893.15
  5. Step 5: Solve for x
    x = 11,863,308,893.15/99,706.48
  6. Step 6: Final answer
    x = 118,982.33

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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.