Home / 189,195.48-261,088.92-103,159.44

Finding the Fourth Proportional to 189,195.48, 261,088.92 and 103,159.44

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Solution

The fourth proportional to 189,195.48, 261,088.92 and 103,159.44 is: 142,359.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,195.48 : 261,088.92 = 103,159.44 : x
  2. Step 2: Convert to fraction form
    189,195.48/261,088.92 = 103,159.44/x
  3. Step 3: Cross multiply
    189,195.48x = 261,088.92 × 103,159.44
  4. Step 4: Simplify right side
    189,195.48x = 26,933,786,777.40
  5. Step 5: Solve for x
    x = 26,933,786,777.40/189,195.48
  6. Step 6: Final answer
    x = 142,359.57

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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.