Home / 252,120.68-347,921.88-137,400.24

Finding the Fourth Proportional to 252,120.68, 347,921.88 and 137,400.24

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Solution

The fourth proportional to 252,120.68, 347,921.88 and 137,400.24 is: 189,609.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,120.68 : 347,921.88 = 137,400.24 : x
  2. Step 2: Convert to fraction form
    252,120.68/347,921.88 = 137,400.24/x
  3. Step 3: Cross multiply
    252,120.68x = 347,921.88 × 137,400.24
  4. Step 4: Simplify right side
    252,120.68x = 47,804,549,813.25
  5. Step 5: Solve for x
    x = 47,804,549,813.25/252,120.68
  6. Step 6: Final answer
    x = 189,609.79

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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.