Home / 131,727.68-181,825.08-75,176.72

Finding the Fourth Proportional to 131,727.68, 181,825.08 and 75,176.72

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Solution

The fourth proportional to 131,727.68, 181,825.08 and 75,176.72 is: 103,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,727.68 : 181,825.08 = 75,176.72 : x
  2. Step 2: Convert to fraction form
    131,727.68/181,825.08 = 75,176.72/x
  3. Step 3: Cross multiply
    131,727.68x = 181,825.08 × 75,176.72
  4. Step 4: Simplify right side
    131,727.68x = 13,669,013,128.14
  5. Step 5: Solve for x
    x = 13,669,013,128.14/131,727.68
  6. Step 6: Final answer
    x = 103,767.20

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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.