Home / 122,185.22-168,608.64-71,206.25

Finding the Fourth Proportional to 122,185.22, 168,608.64 and 71,206.25

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Solution

The fourth proportional to 122,185.22, 168,608.64 and 71,206.25 is: 98,260.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,185.22 : 168,608.64 = 71,206.25 : x
  2. Step 2: Convert to fraction form
    122,185.22/168,608.64 = 71,206.25/x
  3. Step 3: Cross multiply
    122,185.22x = 168,608.64 × 71,206.25
  4. Step 4: Simplify right side
    122,185.22x = 12,005,988,128.96
  5. Step 5: Solve for x
    x = 12,005,988,128.96/122,185.22
  6. Step 6: Final answer
    x = 98,260.56

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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.