Home / 135,269.69-186,731.96-80,841.06

Finding the Fourth Proportional to 135,269.69, 186,731.96 and 80,841.06

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Solution

The fourth proportional to 135,269.69, 186,731.96 and 80,841.06 is: 111,596.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,269.69 : 186,731.96 = 80,841.06 : x
  2. Step 2: Convert to fraction form
    135,269.69/186,731.96 = 80,841.06/x
  3. Step 3: Cross multiply
    135,269.69x = 186,731.96 × 80,841.06
  4. Step 4: Simplify right side
    135,269.69x = 15,095,609,582.28
  5. Step 5: Solve for x
    x = 15,095,609,582.28/135,269.69
  6. Step 6: Final answer
    x = 111,596.39

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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.