Home / 154,256.82-212,873.79-86,273.52

Finding the Fourth Proportional to 154,256.82, 212,873.79 and 86,273.52

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Solution

The fourth proportional to 154,256.82, 212,873.79 and 86,273.52 is: 119,057.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,256.82 : 212,873.79 = 86,273.52 : x
  2. Step 2: Convert to fraction form
    154,256.82/212,873.79 = 86,273.52/x
  3. Step 3: Cross multiply
    154,256.82x = 212,873.79 × 86,273.52
  4. Step 4: Simplify right side
    154,256.82x = 18,365,371,179.04
  5. Step 5: Solve for x
    x = 18,365,371,179.04/154,256.82
  6. Step 6: Final answer
    x = 119,057.11

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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.