Home / 110,864.21-166,337.63-66,522.78

Finding the Fourth Proportional to 110,864.21, 166,337.63 and 66,522.78

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Solution

The fourth proportional to 110,864.21, 166,337.63 and 66,522.78 is: 99,808.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,864.21 : 166,337.63 = 66,522.78 : x
  2. Step 2: Convert to fraction form
    110,864.21/166,337.63 = 66,522.78/x
  3. Step 3: Cross multiply
    110,864.21x = 166,337.63 × 66,522.78
  4. Step 4: Simplify right side
    110,864.21x = 11,065,241,566.21
  5. Step 5: Solve for x
    x = 11,065,241,566.21/110,864.21
  6. Step 6: Final answer
    x = 99,808.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.