Home / 122,283.23-168,679.36-76,889.34

Finding the Fourth Proportional to 122,283.23, 168,679.36 and 76,889.34

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Solution

The fourth proportional to 122,283.23, 168,679.36 and 76,889.34 is: 106,062.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,283.23 : 168,679.36 = 76,889.34 : x
  2. Step 2: Convert to fraction form
    122,283.23/168,679.36 = 76,889.34/x
  3. Step 3: Cross multiply
    122,283.23x = 168,679.36 × 76,889.34
  4. Step 4: Simplify right side
    122,283.23x = 12,969,644,277.58
  5. Step 5: Solve for x
    x = 12,969,644,277.58/122,283.23
  6. Step 6: Final answer
    x = 106,062.33

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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.