Home / 147,318.26-221,074.23-80,805

Finding the Fourth Proportional to 147,318.26, 221,074.23 and 80,805

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Solution

The fourth proportional to 147,318.26, 221,074.23 and 80,805 is: 121,260.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,318.26 : 221,074.23 = 80,805 : x
  2. Step 2: Convert to fraction form
    147,318.26/221,074.23 = 80,805/x
  3. Step 3: Cross multiply
    147,318.26x = 221,074.23 × 80,805
  4. Step 4: Simplify right side
    147,318.26x = 17,863,903,155.15
  5. Step 5: Solve for x
    x = 17,863,903,155.15/147,318.26
  6. Step 6: Final answer
    x = 121,260.62

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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.