Home / 189,243.31-261,152.48-103,202.96

Finding the Fourth Proportional to 189,243.31, 261,152.48 and 103,202.96

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Solution

The fourth proportional to 189,243.31, 261,152.48 and 103,202.96 is: 142,418.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,243.31 : 261,152.48 = 103,202.96 : x
  2. Step 2: Convert to fraction form
    189,243.31/261,152.48 = 103,202.96/x
  3. Step 3: Cross multiply
    189,243.31x = 261,152.48 × 103,202.96
  4. Step 4: Simplify right side
    189,243.31x = 26,951,709,078.31
  5. Step 5: Solve for x
    x = 26,951,709,078.31/189,243.31
  6. Step 6: Final answer
    x = 142,418.29

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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.