Home / 101,558.32-152,351.65-42,380.43

Finding the Fourth Proportional to 101,558.32, 152,351.65 and 42,380.43

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Solution

The fourth proportional to 101,558.32, 152,351.65 and 42,380.43 is: 63,576.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,558.32 : 152,351.65 = 42,380.43 : x
  2. Step 2: Convert to fraction form
    101,558.32/152,351.65 = 42,380.43/x
  3. Step 3: Cross multiply
    101,558.32x = 152,351.65 × 42,380.43
  4. Step 4: Simplify right side
    101,558.32x = 6,456,727,919.87
  5. Step 5: Solve for x
    x = 6,456,727,919.87/101,558.32
  6. Step 6: Final answer
    x = 63,576.55

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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.