Home / 112,972.88-169,429.62-53,690.60

Finding the Fourth Proportional to 112,972.88, 169,429.62 and 53,690.60

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Solution

The fourth proportional to 112,972.88, 169,429.62 and 53,690.60 is: 80,521.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,972.88 : 169,429.62 = 53,690.60 : x
  2. Step 2: Convert to fraction form
    112,972.88/169,429.62 = 53,690.60/x
  3. Step 3: Cross multiply
    112,972.88x = 169,429.62 × 53,690.60
  4. Step 4: Simplify right side
    112,972.88x = 9,096,777,955.57
  5. Step 5: Solve for x
    x = 9,096,777,955.57/112,972.88
  6. Step 6: Final answer
    x = 80,521.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.