Home / 189,548.51-261,590.72-109,001.30

Finding the Fourth Proportional to 189,548.51, 261,590.72 and 109,001.30

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Solution

The fourth proportional to 189,548.51, 261,590.72 and 109,001.30 is: 150,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,548.51 : 261,590.72 = 109,001.30 : x
  2. Step 2: Convert to fraction form
    189,548.51/261,590.72 = 109,001.30/x
  3. Step 3: Cross multiply
    189,548.51x = 261,590.72 × 109,001.30
  4. Step 4: Simplify right side
    189,548.51x = 28,513,726,694.98
  5. Step 5: Solve for x
    x = 28,513,726,694.98/189,548.51
  6. Step 6: Final answer
    x = 150,429.71

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1.5x scale

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.