Home / 163,787.84-225,947.04-100,015.28

Finding the Fourth Proportional to 163,787.84, 225,947.04 and 100,015.28

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Solution

The fourth proportional to 163,787.84, 225,947.04 and 100,015.28 is: 137,972.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,787.84 : 225,947.04 = 100,015.28 : x
  2. Step 2: Convert to fraction form
    163,787.84/225,947.04 = 100,015.28/x
  3. Step 3: Cross multiply
    163,787.84x = 225,947.04 × 100,015.28
  4. Step 4: Simplify right side
    163,787.84x = 22,598,156,470.77
  5. Step 5: Solve for x
    x = 22,598,156,470.77/163,787.84
  6. Step 6: Final answer
    x = 137,972.13

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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.