Home / 147,631.68-203,732.28-80,563.68

Finding the Fourth Proportional to 147,631.68, 203,732.28 and 80,563.68

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Solution

The fourth proportional to 147,631.68, 203,732.28 and 80,563.68 is: 111,178.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,631.68 : 203,732.28 = 80,563.68 : x
  2. Step 2: Convert to fraction form
    147,631.68/203,732.28 = 80,563.68/x
  3. Step 3: Cross multiply
    147,631.68x = 203,732.28 × 80,563.68
  4. Step 4: Simplify right side
    147,631.68x = 16,413,422,211.59
  5. Step 5: Solve for x
    x = 16,413,422,211.59/147,631.68
  6. Step 6: Final answer
    x = 111,178.18

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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.