Home / 212,971.14-319,288.08-106,300.20

Finding the Fourth Proportional to 212,971.14, 319,288.08 and 106,300.20

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Solution

The fourth proportional to 212,971.14, 319,288.08 and 106,300.20 is: 159,366.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,971.14 : 319,288.08 = 106,300.20 : x
  2. Step 2: Convert to fraction form
    212,971.14/319,288.08 = 106,300.20/x
  3. Step 3: Cross multiply
    212,971.14x = 319,288.08 × 106,300.20
  4. Step 4: Simplify right side
    212,971.14x = 33,940,386,761.62
  5. Step 5: Solve for x
    x = 33,940,386,761.62/212,971.14
  6. Step 6: Final answer
    x = 159,366.13

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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.