Home / 209,579.91-289,220.31-114,087.32

Finding the Fourth Proportional to 209,579.91, 289,220.31 and 114,087.32

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Solution

The fourth proportional to 209,579.91, 289,220.31 and 114,087.32 is: 157,440.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,579.91 : 289,220.31 = 114,087.32 : x
  2. Step 2: Convert to fraction form
    209,579.91/289,220.31 = 114,087.32/x
  3. Step 3: Cross multiply
    209,579.91x = 289,220.31 × 114,087.32
  4. Step 4: Simplify right side
    209,579.91x = 32,996,368,611.37
  5. Step 5: Solve for x
    x = 32,996,368,611.37/209,579.91
  6. Step 6: Final answer
    x = 157,440.51

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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.