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Finding the Fourth Proportional to 121,164.49, 167,222.70 and 69,501.73

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Solution

The fourth proportional to 121,164.49, 167,222.70 and 69,501.73 is: 95,921.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,164.49 : 167,222.70 = 69,501.73 : x
  2. Step 2: Convert to fraction form
    121,164.49/167,222.70 = 69,501.73/x
  3. Step 3: Cross multiply
    121,164.49x = 167,222.70 × 69,501.73
  4. Step 4: Simplify right side
    121,164.49x = 11,622,266,945.27
  5. Step 5: Solve for x
    x = 11,622,266,945.27/121,164.49
  6. Step 6: Final answer
    x = 95,921.40

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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.