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Finding the Fourth Proportional to 103,073.19, 154,631.84 and 31,994.28

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Solution

The fourth proportional to 103,073.19, 154,631.84 and 31,994.28 is: 47,998.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,073.19 : 154,631.84 = 31,994.28 : x
  2. Step 2: Convert to fraction form
    103,073.19/154,631.84 = 31,994.28/x
  3. Step 3: Cross multiply
    103,073.19x = 154,631.84 × 31,994.28
  4. Step 4: Simplify right side
    103,073.19x = 4,947,334,385.88
  5. Step 5: Solve for x
    x = 4,947,334,385.88/103,073.19
  6. Step 6: Final answer
    x = 47,998.27

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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.