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Finding the Fourth Proportional to 125,900.66, 188,851.01 and 41,638.21

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Solution

The fourth proportional to 125,900.66, 188,851.01 and 41,638.21 is: 62,457.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,900.66 : 188,851.01 = 41,638.21 : x
  2. Step 2: Convert to fraction form
    125,900.66/188,851.01 = 41,638.21/x
  3. Step 3: Cross multiply
    125,900.66x = 188,851.01 × 41,638.21
  4. Step 4: Simplify right side
    125,900.66x = 7,863,418,013.09
  5. Step 5: Solve for x
    x = 7,863,418,013.09/125,900.66
  6. Step 6: Final answer
    x = 62,457.32

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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.