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Finding the Fourth Proportional to 118,225.80, 177,387.30 and 43,381.80

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Solution

The fourth proportional to 118,225.80, 177,387.30 and 43,381.80 is: 65,090.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,225.80 : 177,387.30 = 43,381.80 : x
  2. Step 2: Convert to fraction form
    118,225.80/177,387.30 = 43,381.80/x
  3. Step 3: Cross multiply
    118,225.80x = 177,387.30 × 43,381.80
  4. Step 4: Simplify right side
    118,225.80x = 7,695,380,371.14
  5. Step 5: Solve for x
    x = 7,695,380,371.14/118,225.80
  6. Step 6: Final answer
    x = 65,090.53

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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.