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Finding the Fourth Proportional to 125,436, 173,095.41 and 74,450.94

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Solution

The fourth proportional to 125,436, 173,095.41 and 74,450.94 is: 102,738.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,436 : 173,095.41 = 74,450.94 : x
  2. Step 2: Convert to fraction form
    125,436/173,095.41 = 74,450.94/x
  3. Step 3: Cross multiply
    125,436x = 173,095.41 × 74,450.94
  4. Step 4: Simplify right side
    125,436x = 12,887,115,984.19
  5. Step 5: Solve for x
    x = 12,887,115,984.19/125,436
  6. Step 6: Final answer
    x = 102,738.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.