Home / 103,787.25-143,217.90-58,450.74

Finding the Fourth Proportional to 103,787.25, 143,217.90 and 58,450.74

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Solution

The fourth proportional to 103,787.25, 143,217.90 and 58,450.74 is: 80,657.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,787.25 : 143,217.90 = 58,450.74 : x
  2. Step 2: Convert to fraction form
    103,787.25/143,217.90 = 58,450.74/x
  3. Step 3: Cross multiply
    103,787.25x = 143,217.90 × 58,450.74
  4. Step 4: Simplify right side
    103,787.25x = 8,371,192,236.25
  5. Step 5: Solve for x
    x = 8,371,192,236.25/103,787.25
  6. Step 6: Final answer
    x = 80,657.23

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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.