Home / 112,498.40-168,664.08-68,114.60

Finding the Fourth Proportional to 112,498.40, 168,664.08 and 68,114.60

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Solution

The fourth proportional to 112,498.40, 168,664.08 and 68,114.60 is: 102,121.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,498.40 : 168,664.08 = 68,114.60 : x
  2. Step 2: Convert to fraction form
    112,498.40/168,664.08 = 68,114.60/x
  3. Step 3: Cross multiply
    112,498.40x = 168,664.08 × 68,114.60
  4. Step 4: Simplify right side
    112,498.40x = 11,488,486,343.57
  5. Step 5: Solve for x
    x = 11,488,486,343.57/112,498.40
  6. Step 6: Final answer
    x = 102,121.33

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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.