Home / 118,491.03-177,781.44-71,139.19

Finding the Fourth Proportional to 118,491.03, 177,781.44 and 71,139.19

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Solution

The fourth proportional to 118,491.03, 177,781.44 and 71,139.19 is: 106,735.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,491.03 : 177,781.44 = 71,139.19 : x
  2. Step 2: Convert to fraction form
    118,491.03/177,781.44 = 71,139.19/x
  3. Step 3: Cross multiply
    118,491.03x = 177,781.44 × 71,139.19
  4. Step 4: Simplify right side
    118,491.03x = 12,647,227,827.49
  5. Step 5: Solve for x
    x = 12,647,227,827.49/118,491.03
  6. Step 6: Final answer
    x = 106,735.74

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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.