Home / 252,028.10-378,034.05-83,556.20

Finding the Fourth Proportional to 252,028.10, 378,034.05 and 83,556.20

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Solution

The fourth proportional to 252,028.10, 378,034.05 and 83,556.20 is: 125,331.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,028.10 : 378,034.05 = 83,556.20 : x
  2. Step 2: Convert to fraction form
    252,028.10/378,034.05 = 83,556.20/x
  3. Step 3: Cross multiply
    252,028.10x = 378,034.05 × 83,556.20
  4. Step 4: Simplify right side
    252,028.10x = 31,587,088,688.61
  5. Step 5: Solve for x
    x = 31,587,088,688.61/252,028.10
  6. Step 6: Final answer
    x = 125,331.61

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1.5x scale

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.