Home / 105,778.14-158,690.56-39,218.28

Finding the Fourth Proportional to 105,778.14, 158,690.56 and 39,218.28

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Solution

The fourth proportional to 105,778.14, 158,690.56 and 39,218.28 is: 58,836.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,778.14 : 158,690.56 = 39,218.28 : x
  2. Step 2: Convert to fraction form
    105,778.14/158,690.56 = 39,218.28/x
  3. Step 3: Cross multiply
    105,778.14x = 158,690.56 × 39,218.28
  4. Step 4: Simplify right side
    105,778.14x = 6,223,570,815.44
  5. Step 5: Solve for x
    x = 6,223,570,815.44/105,778.14
  6. Step 6: Final answer
    x = 58,836.08

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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.