Home / 286,065.52-394,788.87-158,741.11

Finding the Fourth Proportional to 286,065.52, 394,788.87 and 158,741.11

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Solution

The fourth proportional to 286,065.52, 394,788.87 and 158,741.11 is: 219,072.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,065.52 : 394,788.87 = 158,741.11 : x
  2. Step 2: Convert to fraction form
    286,065.52/394,788.87 = 158,741.11/x
  3. Step 3: Cross multiply
    286,065.52x = 394,788.87 × 158,741.11
  4. Step 4: Simplify right side
    286,065.52x = 62,669,223,439.45
  5. Step 5: Solve for x
    x = 62,669,223,439.45/286,065.52
  6. Step 6: Final answer
    x = 219,072.98

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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.