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Finding the Fourth Proportional to 122,237.70, 168,695.01 and 91,968.81

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Solution

The fourth proportional to 122,237.70, 168,695.01 and 91,968.81 is: 126,922.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,237.70 : 168,695.01 = 91,968.81 : x
  2. Step 2: Convert to fraction form
    122,237.70/168,695.01 = 91,968.81/x
  3. Step 3: Cross multiply
    122,237.70x = 168,695.01 × 91,968.81
  4. Step 4: Simplify right side
    122,237.70x = 15,514,679,322.64
  5. Step 5: Solve for x
    x = 15,514,679,322.64/122,237.70
  6. Step 6: Final answer
    x = 126,922.21

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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.