Home / 154,561.28-213,192.96-120,968.96

Finding the Fourth Proportional to 154,561.28, 213,192.96 and 120,968.96

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Solution

The fourth proportional to 154,561.28, 213,192.96 and 120,968.96 is: 166,857.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,561.28 : 213,192.96 = 120,968.96 : x
  2. Step 2: Convert to fraction form
    154,561.28/213,192.96 = 120,968.96/x
  3. Step 3: Cross multiply
    154,561.28x = 213,192.96 × 120,968.96
  4. Step 4: Simplify right side
    154,561.28x = 25,789,730,650.52
  5. Step 5: Solve for x
    x = 25,789,730,650.52/154,561.28
  6. Step 6: Final answer
    x = 166,857.64

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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.