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Finding the Fourth Proportional to 125,627, 188,526.90 and 51,755

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Solution

The fourth proportional to 125,627, 188,526.90 and 51,755 is: 77,668.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,627 : 188,526.90 = 51,755 : x
  2. Step 2: Convert to fraction form
    125,627/188,526.90 = 51,755/x
  3. Step 3: Cross multiply
    125,627x = 188,526.90 × 51,755
  4. Step 4: Simplify right side
    125,627x = 9,757,209,709.50
  5. Step 5: Solve for x
    x = 9,757,209,709.50/125,627
  6. Step 6: Final answer
    x = 77,668.09

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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.