Home / 147,724.62-203,858.90-80,656.62

Finding the Fourth Proportional to 147,724.62, 203,858.90 and 80,656.62

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Solution

The fourth proportional to 147,724.62, 203,858.90 and 80,656.62 is: 111,305.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,724.62 : 203,858.90 = 80,656.62 : x
  2. Step 2: Convert to fraction form
    147,724.62/203,858.90 = 80,656.62/x
  3. Step 3: Cross multiply
    147,724.62x = 203,858.90 × 80,656.62
  4. Step 4: Simplify right side
    147,724.62x = 16,442,569,830.92
  5. Step 5: Solve for x
    x = 16,442,569,830.92/147,724.62
  6. Step 6: Final answer
    x = 111,305.55

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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.