Home / 189,265.38-261,186.30-104,387.91

Finding the Fourth Proportional to 189,265.38, 261,186.30 and 104,387.91

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Solution

The fourth proportional to 189,265.38, 261,186.30 and 104,387.91 is: 144,055.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,265.38 : 261,186.30 = 104,387.91 : x
  2. Step 2: Convert to fraction form
    189,265.38/261,186.30 = 104,387.91/x
  3. Step 3: Cross multiply
    189,265.38x = 261,186.30 × 104,387.91
  4. Step 4: Simplify right side
    189,265.38x = 27,264,691,977.63
  5. Step 5: Solve for x
    x = 27,264,691,977.63/189,265.38
  6. Step 6: Final answer
    x = 144,055.36

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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.