Home / 131,787.14-181,866.37-71,357.82

Finding the Fourth Proportional to 131,787.14, 181,866.37 and 71,357.82

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Solution

The fourth proportional to 131,787.14, 181,866.37 and 71,357.82 is: 98,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,787.14 : 181,866.37 = 71,357.82 : x
  2. Step 2: Convert to fraction form
    131,787.14/181,866.37 = 71,357.82/x
  3. Step 3: Cross multiply
    131,787.14x = 181,866.37 × 71,357.82
  4. Step 4: Simplify right side
    131,787.14x = 12,977,587,516.12
  5. Step 5: Solve for x
    x = 12,977,587,516.12/131,787.14
  6. Step 6: Final answer
    x = 98,473.85

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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.