Home / 134,631.80-201,558.90-82,143.80

Finding the Fourth Proportional to 134,631.80, 201,558.90 and 82,143.80

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Solution

The fourth proportional to 134,631.80, 201,558.90 and 82,143.80 is: 122,978.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,631.80 : 201,558.90 = 82,143.80 : x
  2. Step 2: Convert to fraction form
    134,631.80/201,558.90 = 82,143.80/x
  3. Step 3: Cross multiply
    134,631.80x = 201,558.90 × 82,143.80
  4. Step 4: Simplify right side
    134,631.80x = 16,556,813,969.82
  5. Step 5: Solve for x
    x = 16,556,813,969.82/134,631.80
  6. Step 6: Final answer
    x = 122,978.48

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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.