Home / 270,113.96-405,425.18-137,089.69

Finding the Fourth Proportional to 270,113.96, 405,425.18 and 137,089.69

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Solution

The fourth proportional to 270,113.96, 405,425.18 and 137,089.69 is: 205,763.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,113.96 : 405,425.18 = 137,089.69 : x
  2. Step 2: Convert to fraction form
    270,113.96/405,425.18 = 137,089.69/x
  3. Step 3: Cross multiply
    270,113.96x = 405,425.18 × 137,089.69
  4. Step 4: Simplify right side
    270,113.96x = 55,579,611,573.56
  5. Step 5: Solve for x
    x = 55,579,611,573.56/270,113.96
  6. Step 6: Final answer
    x = 205,763.56

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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.