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Finding the Fourth Proportional to 122,371.65, 168,883.05 and 67,928.94

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Solution

The fourth proportional to 122,371.65, 168,883.05 and 67,928.94 is: 93,747.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,371.65 : 168,883.05 = 67,928.94 : x
  2. Step 2: Convert to fraction form
    122,371.65/168,883.05 = 67,928.94/x
  3. Step 3: Cross multiply
    122,371.65x = 168,883.05 × 67,928.94
  4. Step 4: Simplify right side
    122,371.65x = 11,472,046,570.47
  5. Step 5: Solve for x
    x = 11,472,046,570.47/122,371.65
  6. Step 6: Final answer
    x = 93,747.58

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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.