Home / 189,196.20-261,092.79-103,154.48

Finding the Fourth Proportional to 189,196.20, 261,092.79 and 103,154.48

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Solution

The fourth proportional to 189,196.20, 261,092.79 and 103,154.48 is: 142,354.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,196.20 : 261,092.79 = 103,154.48 : x
  2. Step 2: Convert to fraction form
    189,196.20/261,092.79 = 103,154.48/x
  3. Step 3: Cross multiply
    189,196.20x = 261,092.79 × 103,154.48
  4. Step 4: Simplify right side
    189,196.20x = 26,932,890,071.58
  5. Step 5: Solve for x
    x = 26,932,890,071.58/189,196.20
  6. Step 6: Final answer
    x = 142,354.29

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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.