Home / 137,107.74-205,578.58-89,665.56

Finding the Fourth Proportional to 137,107.74, 205,578.58 and 89,665.56

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Solution

The fourth proportional to 137,107.74, 205,578.58 and 89,665.56 is: 134,444.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,107.74 : 205,578.58 = 89,665.56 : x
  2. Step 2: Convert to fraction form
    137,107.74/205,578.58 = 89,665.56/x
  3. Step 3: Cross multiply
    137,107.74x = 205,578.58 × 89,665.56
  4. Step 4: Simplify right side
    137,107.74x = 18,433,318,499.70
  5. Step 5: Solve for x
    x = 18,433,318,499.70/137,107.74
  6. Step 6: Final answer
    x = 134,444.04

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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.