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Finding the Fourth Proportional to 121,955.52, 168,299.10 and 68,244.06

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Solution

The fourth proportional to 121,955.52, 168,299.10 and 68,244.06 is: 94,177.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,955.52 : 168,299.10 = 68,244.06 : x
  2. Step 2: Convert to fraction form
    121,955.52/168,299.10 = 68,244.06/x
  3. Step 3: Cross multiply
    121,955.52x = 168,299.10 × 68,244.06
  4. Step 4: Simplify right side
    121,955.52x = 11,485,413,878.35
  5. Step 5: Solve for x
    x = 11,485,413,878.35/121,955.52
  6. Step 6: Final answer
    x = 94,177.07

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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.