Home / 120,604.78-166,444.82-66,907.09

Finding the Fourth Proportional to 120,604.78, 166,444.82 and 66,907.09

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Solution

The fourth proportional to 120,604.78, 166,444.82 and 66,907.09 is: 92,337.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,604.78 : 166,444.82 = 66,907.09 : x
  2. Step 2: Convert to fraction form
    120,604.78/166,444.82 = 66,907.09/x
  3. Step 3: Cross multiply
    120,604.78x = 166,444.82 × 66,907.09
  4. Step 4: Simplify right side
    120,604.78x = 11,136,338,551.77
  5. Step 5: Solve for x
    x = 11,136,338,551.77/120,604.78
  6. Step 6: Final answer
    x = 92,337.46

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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.