Home / 131,788.73-181,732.52-112,731.62

Finding the Fourth Proportional to 131,788.73, 181,732.52 and 112,731.62

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Solution

The fourth proportional to 131,788.73, 181,732.52 and 112,731.62 is: 155,453.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,788.73 : 181,732.52 = 112,731.62 : x
  2. Step 2: Convert to fraction form
    131,788.73/181,732.52 = 112,731.62/x
  3. Step 3: Cross multiply
    131,788.73x = 181,732.52 × 112,731.62
  4. Step 4: Simplify right side
    131,788.73x = 20,487,000,759.45
  5. Step 5: Solve for x
    x = 20,487,000,759.45/131,788.73
  6. Step 6: Final answer
    x = 155,453.36

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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.