Home / 137,580.11-206,303.51-80,669.58

Finding the Fourth Proportional to 137,580.11, 206,303.51 and 80,669.58

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Solution

The fourth proportional to 137,580.11, 206,303.51 and 80,669.58 is: 120,965.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,580.11 : 206,303.51 = 80,669.58 : x
  2. Step 2: Convert to fraction form
    137,580.11/206,303.51 = 80,669.58/x
  3. Step 3: Cross multiply
    137,580.11x = 206,303.51 × 80,669.58
  4. Step 4: Simplify right side
    137,580.11x = 16,642,418,092.72
  5. Step 5: Solve for x
    x = 16,642,418,092.72/137,580.11
  6. Step 6: Final answer
    x = 120,965.29

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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.