Home / 120,330.96-166,103.24-107,733.84

Finding the Fourth Proportional to 120,330.96, 166,103.24 and 107,733.84

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Solution

The fourth proportional to 120,330.96, 166,103.24 and 107,733.84 is: 148,714.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,330.96 : 166,103.24 = 107,733.84 : x
  2. Step 2: Convert to fraction form
    120,330.96/166,103.24 = 107,733.84/x
  3. Step 3: Cross multiply
    120,330.96x = 166,103.24 × 107,733.84
  4. Step 4: Simplify right side
    120,330.96x = 17,894,939,881.64
  5. Step 5: Solve for x
    x = 17,894,939,881.64/120,330.96
  6. Step 6: Final answer
    x = 148,714.34

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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.