Home / 137,548.31-206,322.46-90,790.25

Finding the Fourth Proportional to 137,548.31, 206,322.46 and 90,790.25

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Solution

The fourth proportional to 137,548.31, 206,322.46 and 90,790.25 is: 136,185.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,548.31 : 206,322.46 = 90,790.25 : x
  2. Step 2: Convert to fraction form
    137,548.31/206,322.46 = 90,790.25/x
  3. Step 3: Cross multiply
    137,548.31x = 206,322.46 × 90,790.25
  4. Step 4: Simplify right side
    137,548.31x = 18,732,066,465.43
  5. Step 5: Solve for x
    x = 18,732,066,465.43/137,548.31
  6. Step 6: Final answer
    x = 136,185.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.