Home / 252,111.50-347,913.87-138,934.25

Finding the Fourth Proportional to 252,111.50, 347,913.87 and 138,934.25

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Solution

The fourth proportional to 252,111.50, 347,913.87 and 138,934.25 is: 191,729.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,111.50 : 347,913.87 = 138,934.25 : x
  2. Step 2: Convert to fraction form
    252,111.50/347,913.87 = 138,934.25/x
  3. Step 3: Cross multiply
    252,111.50x = 347,913.87 × 138,934.25
  4. Step 4: Simplify right side
    252,111.50x = 48,337,152,593.05
  5. Step 5: Solve for x
    x = 48,337,152,593.05/252,111.50
  6. Step 6: Final answer
    x = 191,729.27

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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.