Home / 207,919.66-286,932.87-121,940.66

Finding the Fourth Proportional to 207,919.66, 286,932.87 and 121,940.66

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Solution

The fourth proportional to 207,919.66, 286,932.87 and 121,940.66 is: 168,280.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,919.66 : 286,932.87 = 121,940.66 : x
  2. Step 2: Convert to fraction form
    207,919.66/286,932.87 = 121,940.66/x
  3. Step 3: Cross multiply
    207,919.66x = 286,932.87 × 121,940.66
  4. Step 4: Simplify right side
    207,919.66x = 34,988,783,543.49
  5. Step 5: Solve for x
    x = 34,988,783,543.49/207,919.66
  6. Step 6: Final answer
    x = 168,280.30

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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.