Home / 121,676.02-167,911.12-67,961.80

Finding the Fourth Proportional to 121,676.02, 167,911.12 and 67,961.80

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Solution

The fourth proportional to 121,676.02, 167,911.12 and 67,961.80 is: 93,786.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,676.02 : 167,911.12 = 67,961.80 : x
  2. Step 2: Convert to fraction form
    121,676.02/167,911.12 = 67,961.80/x
  3. Step 3: Cross multiply
    121,676.02x = 167,911.12 × 67,961.80
  4. Step 4: Simplify right side
    121,676.02x = 11,411,541,955.22
  5. Step 5: Solve for x
    x = 11,411,541,955.22/121,676.02
  6. Step 6: Final answer
    x = 93,786.29

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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.