Home / 207,931.91-286,939.58-117,286.56

Finding the Fourth Proportional to 207,931.91, 286,939.58 and 117,286.56

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Solution

The fourth proportional to 207,931.91, 286,939.58 and 117,286.56 is: 161,851.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,931.91 : 286,939.58 = 117,286.56 : x
  2. Step 2: Convert to fraction form
    207,931.91/286,939.58 = 117,286.56/x
  3. Step 3: Cross multiply
    207,931.91x = 286,939.58 × 117,286.56
  4. Step 4: Simplify right side
    207,931.91x = 33,654,155,679.61
  5. Step 5: Solve for x
    x = 33,654,155,679.61/207,931.91
  6. Step 6: Final answer
    x = 161,851.81

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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.