Home / 90,787.91-136,219.32-40,160.34

Finding the Fourth Proportional to 90,787.91, 136,219.32 and 40,160.34

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Solution

The fourth proportional to 90,787.91, 136,219.32 and 40,160.34 is: 60,257.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,787.91 : 136,219.32 = 40,160.34 : x
  2. Step 2: Convert to fraction form
    90,787.91/136,219.32 = 40,160.34/x
  3. Step 3: Cross multiply
    90,787.91x = 136,219.32 × 40,160.34
  4. Step 4: Simplify right side
    90,787.91x = 5,470,614,205.77
  5. Step 5: Solve for x
    x = 5,470,614,205.77/90,787.91
  6. Step 6: Final answer
    x = 60,257.08

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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.