Home / 189,436.85-261,421.56-104,553.91

Finding the Fourth Proportional to 189,436.85, 261,421.56 and 104,553.91

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Solution

The fourth proportional to 189,436.85, 261,421.56 and 104,553.91 is: 144,283.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,436.85 : 261,421.56 = 104,553.91 : x
  2. Step 2: Convert to fraction form
    189,436.85/261,421.56 = 104,553.91/x
  3. Step 3: Cross multiply
    189,436.85x = 261,421.56 × 104,553.91
  4. Step 4: Simplify right side
    189,436.85x = 27,332,646,256.30
  5. Step 5: Solve for x
    x = 27,332,646,256.30/189,436.85
  6. Step 6: Final answer
    x = 144,283.68

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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.