Home / 251,741.22-347,405.70-137,020.56

Finding the Fourth Proportional to 251,741.22, 347,405.70 and 137,020.56

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Solution

The fourth proportional to 251,741.22, 347,405.70 and 137,020.56 is: 189,089.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,741.22 : 347,405.70 = 137,020.56 : x
  2. Step 2: Convert to fraction form
    251,741.22/347,405.70 = 137,020.56/x
  3. Step 3: Cross multiply
    251,741.22x = 347,405.70 × 137,020.56
  4. Step 4: Simplify right side
    251,741.22x = 47,601,723,561.19
  5. Step 5: Solve for x
    x = 47,601,723,561.19/251,741.22
  6. Step 6: Final answer
    x = 189,089.91

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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.