Home / 252,121.06-347,922.40-137,400.62

Finding the Fourth Proportional to 252,121.06, 347,922.40 and 137,400.62

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Solution

The fourth proportional to 252,121.06, 347,922.40 and 137,400.62 is: 189,610.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,121.06 : 347,922.40 = 137,400.62 : x
  2. Step 2: Convert to fraction form
    252,121.06/347,922.40 = 137,400.62/x
  3. Step 3: Cross multiply
    252,121.06x = 347,922.40 × 137,400.62
  4. Step 4: Simplify right side
    252,121.06x = 47,804,753,471.89
  5. Step 5: Solve for x
    x = 47,804,753,471.89/252,121.06
  6. Step 6: Final answer
    x = 189,610.31

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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.