Home / 120,568.24-166,357.24-72,162.64

Finding the Fourth Proportional to 120,568.24, 166,357.24 and 72,162.64

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Solution

The fourth proportional to 120,568.24, 166,357.24 and 72,162.64 is: 99,568.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,568.24 : 166,357.24 = 72,162.64 : x
  2. Step 2: Convert to fraction form
    120,568.24/166,357.24 = 72,162.64/x
  3. Step 3: Cross multiply
    120,568.24x = 166,357.24 × 72,162.64
  4. Step 4: Simplify right side
    120,568.24x = 12,004,777,621.51
  5. Step 5: Solve for x
    x = 12,004,777,621.51/120,568.24
  6. Step 6: Final answer
    x = 99,568.32

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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.