Home / 147,556.78-203,628.99-80,490.22

Finding the Fourth Proportional to 147,556.78, 203,628.99 and 80,490.22

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Solution

The fourth proportional to 147,556.78, 203,628.99 and 80,490.22 is: 111,076.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,556.78 : 203,628.99 = 80,490.22 : x
  2. Step 2: Convert to fraction form
    147,556.78/203,628.99 = 80,490.22/x
  3. Step 3: Cross multiply
    147,556.78x = 203,628.99 × 80,490.22
  4. Step 4: Simplify right side
    147,556.78x = 16,390,142,203.48
  5. Step 5: Solve for x
    x = 16,390,142,203.48/147,556.78
  6. Step 6: Final answer
    x = 111,076.85

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1.5x scale

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.