Home / 103,327.40-154,991.10-102,671.30

Finding the Fourth Proportional to 103,327.40, 154,991.10 and 102,671.30

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Solution

The fourth proportional to 103,327.40, 154,991.10 and 102,671.30 is: 154,006.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,327.40 : 154,991.10 = 102,671.30 : x
  2. Step 2: Convert to fraction form
    103,327.40/154,991.10 = 102,671.30/x
  3. Step 3: Cross multiply
    103,327.40x = 154,991.10 × 102,671.30
  4. Step 4: Simplify right side
    103,327.40x = 15,913,137,725.43
  5. Step 5: Solve for x
    x = 15,913,137,725.43/103,327.40
  6. Step 6: Final answer
    x = 154,006.95

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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.