Home / 106,727.23-159,743.31-78,636.07

Finding the Fourth Proportional to 106,727.23, 159,743.31 and 78,636.07

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Solution

The fourth proportional to 106,727.23, 159,743.31 and 78,636.07 is: 117,698.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,727.23 : 159,743.31 = 78,636.07 : x
  2. Step 2: Convert to fraction form
    106,727.23/159,743.31 = 78,636.07/x
  3. Step 3: Cross multiply
    106,727.23x = 159,743.31 × 78,636.07
  4. Step 4: Simplify right side
    106,727.23x = 12,561,586,107.19
  5. Step 5: Solve for x
    x = 12,561,586,107.19/106,727.23
  6. Step 6: Final answer
    x = 117,698.04

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1.5x scale

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.