Home / 145,754.33-201,151.42-81,227.90

Finding the Fourth Proportional to 145,754.33, 201,151.42 and 81,227.90

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Solution

The fourth proportional to 145,754.33, 201,151.42 and 81,227.90 is: 112,100.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,754.33 : 201,151.42 = 81,227.90 : x
  2. Step 2: Convert to fraction form
    145,754.33/201,151.42 = 81,227.90/x
  3. Step 3: Cross multiply
    145,754.33x = 201,151.42 × 81,227.90
  4. Step 4: Simplify right side
    145,754.33x = 16,339,107,728.43
  5. Step 5: Solve for x
    x = 16,339,107,728.43/145,754.33
  6. Step 6: Final answer
    x = 112,100.33

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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.