Home / 205,847.50-284,069.56-111,639.50

Finding the Fourth Proportional to 205,847.50, 284,069.56 and 111,639.50

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Solution

The fourth proportional to 205,847.50, 284,069.56 and 111,639.50 is: 154,062.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,847.50 : 284,069.56 = 111,639.50 : x
  2. Step 2: Convert to fraction form
    205,847.50/284,069.56 = 111,639.50/x
  3. Step 3: Cross multiply
    205,847.50x = 284,069.56 × 111,639.50
  4. Step 4: Simplify right side
    205,847.50x = 31,713,383,643.62
  5. Step 5: Solve for x
    x = 31,713,383,643.62/205,847.50
  6. Step 6: Final answer
    x = 154,062.52

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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.