Home / 154,274.35-213,008.94-120,320.77

Finding the Fourth Proportional to 154,274.35, 213,008.94 and 120,320.77

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Solution

The fourth proportional to 154,274.35, 213,008.94 and 120,320.77 is: 166,128.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,274.35 : 213,008.94 = 120,320.77 : x
  2. Step 2: Convert to fraction form
    154,274.35/213,008.94 = 120,320.77/x
  3. Step 3: Cross multiply
    154,274.35x = 213,008.94 × 120,320.77
  4. Step 4: Simplify right side
    154,274.35x = 25,629,399,677.68
  5. Step 5: Solve for x
    x = 25,629,399,677.68/154,274.35
  6. Step 6: Final answer
    x = 166,128.72

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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.