Home / 252,120.28-347,926-138,943.03

Finding the Fourth Proportional to 252,120.28, 347,926 and 138,943.03

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Solution

The fourth proportional to 252,120.28, 347,926 and 138,943.03 is: 191,741.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,120.28 : 347,926 = 138,943.03 : x
  2. Step 2: Convert to fraction form
    252,120.28/347,926 = 138,943.03/x
  3. Step 3: Cross multiply
    252,120.28x = 347,926 × 138,943.03
  4. Step 4: Simplify right side
    252,120.28x = 48,341,892,655.78
  5. Step 5: Solve for x
    x = 48,341,892,655.78/252,120.28
  6. Step 6: Final answer
    x = 191,741.39

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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.