Home / 112,619.22-168,592.29-68,111.34

Finding the Fourth Proportional to 112,619.22, 168,592.29 and 68,111.34

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Solution

The fourth proportional to 112,619.22, 168,592.29 and 68,111.34 is: 101,963.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,619.22 : 168,592.29 = 68,111.34 : x
  2. Step 2: Convert to fraction form
    112,619.22/168,592.29 = 68,111.34/x
  3. Step 3: Cross multiply
    112,619.22x = 168,592.29 × 68,111.34
  4. Step 4: Simplify right side
    112,619.22x = 11,483,046,785.57
  5. Step 5: Solve for x
    x = 11,483,046,785.57/112,619.22
  6. Step 6: Final answer
    x = 101,963.47

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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.