Home / 121,693.12-167,935.79-67,977.97

Finding the Fourth Proportional to 121,693.12, 167,935.79 and 67,977.97

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Solution

The fourth proportional to 121,693.12, 167,935.79 and 67,977.97 is: 93,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,693.12 : 167,935.79 = 67,977.97 : x
  2. Step 2: Convert to fraction form
    121,693.12/167,935.79 = 67,977.97/x
  3. Step 3: Cross multiply
    121,693.12x = 167,935.79 × 67,977.97
  4. Step 4: Simplify right side
    121,693.12x = 11,415,934,094.55
  5. Step 5: Solve for x
    x = 11,415,934,094.55/121,693.12
  6. Step 6: Final answer
    x = 93,809.20

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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.