Home / 131,448.92-181,187.00-102,718.66

Finding the Fourth Proportional to 131,448.92, 181,187.00 and 102,718.66

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Solution

The fourth proportional to 131,448.92, 181,187.00 and 102,718.66 is: 141,585.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,448.92 : 181,187.00 = 102,718.66 : x
  2. Step 2: Convert to fraction form
    131,448.92/181,187.00 = 102,718.66/x
  3. Step 3: Cross multiply
    131,448.92x = 181,187.00 × 102,718.66
  4. Step 4: Simplify right side
    131,448.92x = 18,611,284,429.89
  5. Step 5: Solve for x
    x = 18,611,284,429.89/131,448.92
  6. Step 6: Final answer
    x = 141,585.68

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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.