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Finding the Fourth Proportional to 121,258, 167,336.04 and 68,266

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Solution

The fourth proportional to 121,258, 167,336.04 and 68,266 is: 94,207.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,258 : 167,336.04 = 68,266 : x
  2. Step 2: Convert to fraction form
    121,258/167,336.04 = 68,266/x
  3. Step 3: Cross multiply
    121,258x = 167,336.04 × 68,266
  4. Step 4: Simplify right side
    121,258x = 11,423,362,106.64
  5. Step 5: Solve for x
    x = 11,423,362,106.64/121,258
  6. Step 6: Final answer
    x = 94,207.08

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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.