Home / 207,972.20-287,036.92-117,353.86

Finding the Fourth Proportional to 207,972.20, 287,036.92 and 117,353.86

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Solution

The fourth proportional to 207,972.20, 287,036.92 and 117,353.86 is: 161,968.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,972.20 : 287,036.92 = 117,353.86 : x
  2. Step 2: Convert to fraction form
    207,972.20/287,036.92 = 117,353.86/x
  3. Step 3: Cross multiply
    207,972.20x = 287,036.92 × 117,353.86
  4. Step 4: Simplify right side
    207,972.20x = 33,684,890,524.51
  5. Step 5: Solve for x
    x = 33,684,890,524.51/207,972.20
  6. Step 6: Final answer
    x = 161,968.24

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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.