Home / 252,120.78-347,917.87-137,397.10

Finding the Fourth Proportional to 252,120.78, 347,917.87 and 137,397.10

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Solution

The fourth proportional to 252,120.78, 347,917.87 and 137,397.10 is: 189,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,120.78 : 347,917.87 = 137,397.10 : x
  2. Step 2: Convert to fraction form
    252,120.78/347,917.87 = 137,397.10/x
  3. Step 3: Cross multiply
    252,120.78x = 347,917.87 × 137,397.10
  4. Step 4: Simplify right side
    252,120.78x = 47,802,905,648.00
  5. Step 5: Solve for x
    x = 47,802,905,648.00/252,120.78
  6. Step 6: Final answer
    x = 189,603.20

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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.