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Finding the Fourth Proportional to 147,556.48, 203,627.52 and 80,488

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Solution

The fourth proportional to 147,556.48, 203,627.52 and 80,488 is: 111,073.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,556.48 : 203,627.52 = 80,488 : x
  2. Step 2: Convert to fraction form
    147,556.48/203,627.52 = 80,488/x
  3. Step 3: Cross multiply
    147,556.48x = 203,627.52 × 80,488
  4. Step 4: Simplify right side
    147,556.48x = 16,389,571,829.76
  5. Step 5: Solve for x
    x = 16,389,571,829.76/147,556.48
  6. Step 6: Final answer
    x = 111,073.21

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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.