Home / 277,836.14-416,705.66-78,109.08

Finding the Fourth Proportional to 277,836.14, 416,705.66 and 78,109.08

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Solution

The fourth proportional to 277,836.14, 416,705.66 and 78,109.08 is: 117,149.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,836.14 : 416,705.66 = 78,109.08 : x
  2. Step 2: Convert to fraction form
    277,836.14/416,705.66 = 78,109.08/x
  3. Step 3: Cross multiply
    277,836.14x = 416,705.66 × 78,109.08
  4. Step 4: Simplify right side
    277,836.14x = 32,548,495,733.39
  5. Step 5: Solve for x
    x = 32,548,495,733.39/277,836.14
  6. Step 6: Final answer
    x = 117,149.97

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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.