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Finding the Fourth Proportional to 125,877, 188,889.62 and 55,756.92

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Solution

The fourth proportional to 125,877, 188,889.62 and 55,756.92 is: 83,668.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,877 : 188,889.62 = 55,756.92 : x
  2. Step 2: Convert to fraction form
    125,877/188,889.62 = 55,756.92/x
  3. Step 3: Cross multiply
    125,877x = 188,889.62 × 55,756.92
  4. Step 4: Simplify right side
    125,877x = 10,531,903,431.17
  5. Step 5: Solve for x
    x = 10,531,903,431.17/125,877
  6. Step 6: Final answer
    x = 83,668.21

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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.