Home / 189,769.77-261,882.36-104,886.86

Finding the Fourth Proportional to 189,769.77, 261,882.36 and 104,886.86

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Solution

The fourth proportional to 189,769.77, 261,882.36 and 104,886.86 is: 144,743.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,769.77 : 261,882.36 = 104,886.86 : x
  2. Step 2: Convert to fraction form
    189,769.77/261,882.36 = 104,886.86/x
  3. Step 3: Cross multiply
    189,769.77x = 261,882.36 × 104,886.86
  4. Step 4: Simplify right side
    189,769.77x = 27,468,017,120.38
  5. Step 5: Solve for x
    x = 27,468,017,120.38/189,769.77
  6. Step 6: Final answer
    x = 144,743.90

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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.