Home / 136,532.39-188,411.55-79,181.96

Finding the Fourth Proportional to 136,532.39, 188,411.55 and 79,181.96

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Solution

The fourth proportional to 136,532.39, 188,411.55 and 79,181.96 is: 109,269.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,532.39 : 188,411.55 = 79,181.96 : x
  2. Step 2: Convert to fraction form
    136,532.39/188,411.55 = 79,181.96/x
  3. Step 3: Cross multiply
    136,532.39x = 188,411.55 × 79,181.96
  4. Step 4: Simplify right side
    136,532.39x = 14,918,795,815.64
  5. Step 5: Solve for x
    x = 14,918,795,815.64/136,532.39
  6. Step 6: Final answer
    x = 109,269.28

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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.