Home / 163,963.43-245,945.18-126,578.08

Finding the Fourth Proportional to 163,963.43, 245,945.18 and 126,578.08

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Solution

The fourth proportional to 163,963.43, 245,945.18 and 126,578.08 is: 189,867.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,963.43 : 245,945.18 = 126,578.08 : x
  2. Step 2: Convert to fraction form
    163,963.43/245,945.18 = 126,578.08/x
  3. Step 3: Cross multiply
    163,963.43x = 245,945.18 × 126,578.08
  4. Step 4: Simplify right side
    163,963.43x = 31,131,268,669.65
  5. Step 5: Solve for x
    x = 31,131,268,669.65/163,963.43
  6. Step 6: Final answer
    x = 189,867.15

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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.