Home / 199,964.39-275,912.78-118,305.45

Finding the Fourth Proportional to 199,964.39, 275,912.78 and 118,305.45

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Solution

The fourth proportional to 199,964.39, 275,912.78 and 118,305.45 is: 163,238.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,964.39 : 275,912.78 = 118,305.45 : x
  2. Step 2: Convert to fraction form
    199,964.39/275,912.78 = 118,305.45/x
  3. Step 3: Cross multiply
    199,964.39x = 275,912.78 × 118,305.45
  4. Step 4: Simplify right side
    199,964.39x = 32,641,985,007.12
  5. Step 5: Solve for x
    x = 32,641,985,007.12/199,964.39
  6. Step 6: Final answer
    x = 163,238.99

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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.