Home / 120,427.62-166,199.49-66,717.60

Finding the Fourth Proportional to 120,427.62, 166,199.49 and 66,717.60

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Solution

The fourth proportional to 120,427.62, 166,199.49 and 66,717.60 is: 92,075.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,427.62 : 166,199.49 = 66,717.60 : x
  2. Step 2: Convert to fraction form
    120,427.62/166,199.49 = 66,717.60/x
  3. Step 3: Cross multiply
    120,427.62x = 166,199.49 × 66,717.60
  4. Step 4: Simplify right side
    120,427.62x = 11,088,431,094.02
  5. Step 5: Solve for x
    x = 11,088,431,094.02/120,427.62
  6. Step 6: Final answer
    x = 92,075.48

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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.