Home / 145,806.72-201,213.32-82,144.52

Finding the Fourth Proportional to 145,806.72, 201,213.32 and 82,144.52

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Solution

The fourth proportional to 145,806.72, 201,213.32 and 82,144.52 is: 113,359.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,806.72 : 201,213.32 = 82,144.52 : x
  2. Step 2: Convert to fraction form
    145,806.72/201,213.32 = 82,144.52/x
  3. Step 3: Cross multiply
    145,806.72x = 201,213.32 × 82,144.52
  4. Step 4: Simplify right side
    145,806.72x = 16,528,571,589.01
  5. Step 5: Solve for x
    x = 16,528,571,589.01/145,806.72
  6. Step 6: Final answer
    x = 113,359.46

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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.