Home / 189,414.28-261,393.18-103,373.92

Finding the Fourth Proportional to 189,414.28, 261,393.18 and 103,373.92

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Solution

The fourth proportional to 189,414.28, 261,393.18 and 103,373.92 is: 142,656.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,414.28 : 261,393.18 = 103,373.92 : x
  2. Step 2: Convert to fraction form
    189,414.28/261,393.18 = 103,373.92/x
  3. Step 3: Cross multiply
    189,414.28x = 261,393.18 × 103,373.92
  4. Step 4: Simplify right side
    189,414.28x = 27,021,237,677.87
  5. Step 5: Solve for x
    x = 27,021,237,677.87/189,414.28
  6. Step 6: Final answer
    x = 142,656.81

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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.