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Finding the Fourth Proportional to 121,734.01, 167,992.58 and 68,019.07

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Solution

The fourth proportional to 121,734.01, 167,992.58 and 68,019.07 is: 93,866.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,734.01 : 167,992.58 = 68,019.07 : x
  2. Step 2: Convert to fraction form
    121,734.01/167,992.58 = 68,019.07/x
  3. Step 3: Cross multiply
    121,734.01x = 167,992.58 × 68,019.07
  4. Step 4: Simplify right side
    121,734.01x = 11,426,698,268.47
  5. Step 5: Solve for x
    x = 11,426,698,268.47/121,734.01
  6. Step 6: Final answer
    x = 93,866.11

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1.5x scale

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.