Home / 212,948.81-319,620.04-107,841.59

Finding the Fourth Proportional to 212,948.81, 319,620.04 and 107,841.59

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Solution

The fourth proportional to 212,948.81, 319,620.04 and 107,841.59 is: 161,862.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,948.81 : 319,620.04 = 107,841.59 : x
  2. Step 2: Convert to fraction form
    212,948.81/319,620.04 = 107,841.59/x
  3. Step 3: Cross multiply
    212,948.81x = 319,620.04 × 107,841.59
  4. Step 4: Simplify right side
    212,948.81x = 34,468,331,172.16
  5. Step 5: Solve for x
    x = 34,468,331,172.16/212,948.81
  6. Step 6: Final answer
    x = 161,862.05

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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.