Home / 252,100.14-347,911.16-138,922.89

Finding the Fourth Proportional to 252,100.14, 347,911.16 and 138,922.89

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Solution

The fourth proportional to 252,100.14, 347,911.16 and 138,922.89 is: 191,720.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,100.14 : 347,911.16 = 138,922.89 : x
  2. Step 2: Convert to fraction form
    252,100.14/347,911.16 = 138,922.89/x
  3. Step 3: Cross multiply
    252,100.14x = 347,911.16 × 138,922.89
  4. Step 4: Simplify right side
    252,100.14x = 48,332,823,810.45
  5. Step 5: Solve for x
    x = 48,332,823,810.45/252,100.14
  6. Step 6: Final answer
    x = 191,720.73

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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.