Home / 120,467.79-166,094.42-77,371.20

Finding the Fourth Proportional to 120,467.79, 166,094.42 and 77,371.20

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Solution

The fourth proportional to 120,467.79, 166,094.42 and 77,371.20 is: 106,675.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,467.79 : 166,094.42 = 77,371.20 : x
  2. Step 2: Convert to fraction form
    120,467.79/166,094.42 = 77,371.20/x
  3. Step 3: Cross multiply
    120,467.79x = 166,094.42 × 77,371.20
  4. Step 4: Simplify right side
    120,467.79x = 12,850,924,201.85
  5. Step 5: Solve for x
    x = 12,850,924,201.85/120,467.79
  6. Step 6: Final answer
    x = 106,675.19

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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.