Home / 136,097.37-187,837.62-87,685.68

Finding the Fourth Proportional to 136,097.37, 187,837.62 and 87,685.68

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Solution

The fourth proportional to 136,097.37, 187,837.62 and 87,685.68 is: 121,021.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,097.37 : 187,837.62 = 87,685.68 : x
  2. Step 2: Convert to fraction form
    136,097.37/187,837.62 = 87,685.68/x
  3. Step 3: Cross multiply
    136,097.37x = 187,837.62 × 87,685.68
  4. Step 4: Simplify right side
    136,097.37x = 16,470,669,439.28
  5. Step 5: Solve for x
    x = 16,470,669,439.28/136,097.37
  6. Step 6: Final answer
    x = 121,021.22

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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.