Home / 147,638.26-203,747.43-83,129.69

Finding the Fourth Proportional to 147,638.26, 203,747.43 and 83,129.69

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Solution

The fourth proportional to 147,638.26, 203,747.43 and 83,129.69 is: 114,722.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,638.26 : 203,747.43 = 83,129.69 : x
  2. Step 2: Convert to fraction form
    147,638.26/203,747.43 = 83,129.69/x
  3. Step 3: Cross multiply
    147,638.26x = 203,747.43 × 83,129.69
  4. Step 4: Simplify right side
    147,638.26x = 16,937,461,515.30
  5. Step 5: Solve for x
    x = 16,937,461,515.30/147,638.26
  6. Step 6: Final answer
    x = 114,722.71

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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.