Home / 121,742.66-168,003.24-68,029.94

Finding the Fourth Proportional to 121,742.66, 168,003.24 and 68,029.94

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Solution

The fourth proportional to 121,742.66, 168,003.24 and 68,029.94 is: 93,880.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,742.66 : 168,003.24 = 68,029.94 : x
  2. Step 2: Convert to fraction form
    121,742.66/168,003.24 = 68,029.94/x
  3. Step 3: Cross multiply
    121,742.66x = 168,003.24 × 68,029.94
  4. Step 4: Simplify right side
    121,742.66x = 11,429,250,337.01
  5. Step 5: Solve for x
    x = 11,429,250,337.01/121,742.66
  6. Step 6: Final answer
    x = 93,880.41

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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.