Home / 154,265.85-212,997.20-120,312.27

Finding the Fourth Proportional to 154,265.85, 212,997.20 and 120,312.27

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Solution

The fourth proportional to 154,265.85, 212,997.20 and 120,312.27 is: 166,116.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,265.85 : 212,997.20 = 120,312.27 : x
  2. Step 2: Convert to fraction form
    154,265.85/212,997.20 = 120,312.27/x
  3. Step 3: Cross multiply
    154,265.85x = 212,997.20 × 120,312.27
  4. Step 4: Simplify right side
    154,265.85x = 25,626,176,034.08
  5. Step 5: Solve for x
    x = 25,626,176,034.08/154,265.85
  6. Step 6: Final answer
    x = 166,116.97

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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.