Home / 136,727.65-188,683.80-76,297.65

Finding the Fourth Proportional to 136,727.65, 188,683.80 and 76,297.65

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Solution

The fourth proportional to 136,727.65, 188,683.80 and 76,297.65 is: 105,290.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,727.65 : 188,683.80 = 76,297.65 : x
  2. Step 2: Convert to fraction form
    136,727.65/188,683.80 = 76,297.65/x
  3. Step 3: Cross multiply
    136,727.65x = 188,683.80 × 76,297.65
  4. Step 4: Simplify right side
    136,727.65x = 14,396,130,183.15
  5. Step 5: Solve for x
    x = 14,396,130,183.15/136,727.65
  6. Step 6: Final answer
    x = 105,290.56

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1.5x scale

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.