Home / 135,338.24-203,006.45-105,780.94

Finding the Fourth Proportional to 135,338.24, 203,006.45 and 105,780.94

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Solution

The fourth proportional to 135,338.24, 203,006.45 and 105,780.94 is: 158,670.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,338.24 : 203,006.45 = 105,780.94 : x
  2. Step 2: Convert to fraction form
    135,338.24/203,006.45 = 105,780.94/x
  3. Step 3: Cross multiply
    135,338.24x = 203,006.45 × 105,780.94
  4. Step 4: Simplify right side
    135,338.24x = 21,474,212,864.00
  5. Step 5: Solve for x
    x = 21,474,212,864.00/135,338.24
  6. Step 6: Final answer
    x = 158,670.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.