Home / 125,296.14-187,526.72-100,218.54

Finding the Fourth Proportional to 125,296.14, 187,526.72 and 100,218.54

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Solution

The fourth proportional to 125,296.14, 187,526.72 and 100,218.54 is: 149,993.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,296.14 : 187,526.72 = 100,218.54 : x
  2. Step 2: Convert to fraction form
    125,296.14/187,526.72 = 100,218.54/x
  3. Step 3: Cross multiply
    125,296.14x = 187,526.72 × 100,218.54
  4. Step 4: Simplify right side
    125,296.14x = 18,793,654,089.39
  5. Step 5: Solve for x
    x = 18,793,654,089.39/125,296.14
  6. Step 6: Final answer
    x = 149,993.88

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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.