Home / 120,339.42-166,062.07-65,881.16

Finding the Fourth Proportional to 120,339.42, 166,062.07 and 65,881.16

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Solution

The fourth proportional to 120,339.42, 166,062.07 and 65,881.16 is: 90,912.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,339.42 : 166,062.07 = 65,881.16 : x
  2. Step 2: Convert to fraction form
    120,339.42/166,062.07 = 65,881.16/x
  3. Step 3: Cross multiply
    120,339.42x = 166,062.07 × 65,881.16
  4. Step 4: Simplify right side
    120,339.42x = 10,940,362,054.05
  5. Step 5: Solve for x
    x = 10,940,362,054.05/120,339.42
  6. Step 6: Final answer
    x = 90,912.54

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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.