Home / 154,074.70-212,610.98-85,161.26

Finding the Fourth Proportional to 154,074.70, 212,610.98 and 85,161.26

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Solution

The fourth proportional to 154,074.70, 212,610.98 and 85,161.26 is: 117,515.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,074.70 : 212,610.98 = 85,161.26 : x
  2. Step 2: Convert to fraction form
    154,074.70/212,610.98 = 85,161.26/x
  3. Step 3: Cross multiply
    154,074.70x = 212,610.98 × 85,161.26
  4. Step 4: Simplify right side
    154,074.70x = 18,106,219,052.36
  5. Step 5: Solve for x
    x = 18,106,219,052.36/154,074.70
  6. Step 6: Final answer
    x = 117,515.85

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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.