Home / 157,680.66-217,596.22-86,061.19

Finding the Fourth Proportional to 157,680.66, 217,596.22 and 86,061.19

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Solution

The fourth proportional to 157,680.66, 217,596.22 and 86,061.19 is: 118,762.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,680.66 : 217,596.22 = 86,061.19 : x
  2. Step 2: Convert to fraction form
    157,680.66/217,596.22 = 86,061.19/x
  3. Step 3: Cross multiply
    157,680.66x = 217,596.22 × 86,061.19
  4. Step 4: Simplify right side
    157,680.66x = 18,726,589,632.70
  5. Step 5: Solve for x
    x = 18,726,589,632.70/157,680.66
  6. Step 6: Final answer
    x = 118,762.76

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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.