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Finding the Fourth Proportional to 189,253.76, 261,171.84 and 104,373.76

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Solution

The fourth proportional to 189,253.76, 261,171.84 and 104,373.76 is: 144,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,253.76 : 261,171.84 = 104,373.76 : x
  2. Step 2: Convert to fraction form
    189,253.76/261,171.84 = 104,373.76/x
  3. Step 3: Cross multiply
    189,253.76x = 261,171.84 × 104,373.76
  4. Step 4: Simplify right side
    189,253.76x = 27,259,486,946.92
  5. Step 5: Solve for x
    x = 27,259,486,946.92/189,253.76
  6. Step 6: Final answer
    x = 144,036.70

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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.