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Finding the Fourth Proportional to 84,837, 127,223.50 and 68,156.04

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Solution

The fourth proportional to 84,837, 127,223.50 and 68,156.04 is: 102,208.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,837 : 127,223.50 = 68,156.04 : x
  2. Step 2: Convert to fraction form
    84,837/127,223.50 = 68,156.04/x
  3. Step 3: Cross multiply
    84,837x = 127,223.50 × 68,156.04
  4. Step 4: Simplify right side
    84,837x = 8,671,049,954.94
  5. Step 5: Solve for x
    x = 8,671,049,954.94/84,837
  6. Step 6: Final answer
    x = 102,208.35

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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.