Home / 120,595.28-166,421.93-66,885.26

Finding the Fourth Proportional to 120,595.28, 166,421.93 and 66,885.26

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Solution

The fourth proportional to 120,595.28, 166,421.93 and 66,885.26 is: 92,301.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,595.28 : 166,421.93 = 66,885.26 : x
  2. Step 2: Convert to fraction form
    120,595.28/166,421.93 = 66,885.26/x
  3. Step 3: Cross multiply
    120,595.28x = 166,421.93 × 66,885.26
  4. Step 4: Simplify right side
    120,595.28x = 11,131,172,891.22
  5. Step 5: Solve for x
    x = 11,131,172,891.22/120,595.28
  6. Step 6: Final answer
    x = 92,301.90

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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.