Home / 121,731.01-167,985.65-68,016.47

Finding the Fourth Proportional to 121,731.01, 167,985.65 and 68,016.47

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Solution

The fourth proportional to 121,731.01, 167,985.65 and 68,016.47 is: 93,860.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,731.01 : 167,985.65 = 68,016.47 : x
  2. Step 2: Convert to fraction form
    121,731.01/167,985.65 = 68,016.47/x
  3. Step 3: Cross multiply
    121,731.01x = 167,985.65 × 68,016.47
  4. Step 4: Simplify right side
    121,731.01x = 11,425,790,253.77
  5. Step 5: Solve for x
    x = 11,425,790,253.77/121,731.01
  6. Step 6: Final answer
    x = 93,860.97

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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.