Home / 200,719.32-277,001.64-120,131.52

Finding the Fourth Proportional to 200,719.32, 277,001.64 and 120,131.52

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Solution

The fourth proportional to 200,719.32, 277,001.64 and 120,131.52 is: 165,786.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,719.32 : 277,001.64 = 120,131.52 : x
  2. Step 2: Convert to fraction form
    200,719.32/277,001.64 = 120,131.52/x
  3. Step 3: Cross multiply
    200,719.32x = 277,001.64 × 120,131.52
  4. Step 4: Simplify right side
    200,719.32x = 33,276,628,055.69
  5. Step 5: Solve for x
    x = 33,276,628,055.69/200,719.32
  6. Step 6: Final answer
    x = 165,786.87

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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.