Home / 120,506.72-166,296.38-66,790.58

Finding the Fourth Proportional to 120,506.72, 166,296.38 and 66,790.58

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Solution

The fourth proportional to 120,506.72, 166,296.38 and 66,790.58 is: 92,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,506.72 : 166,296.38 = 66,790.58 : x
  2. Step 2: Convert to fraction form
    120,506.72/166,296.38 = 66,790.58/x
  3. Step 3: Cross multiply
    120,506.72x = 166,296.38 × 66,790.58
  4. Step 4: Simplify right side
    120,506.72x = 11,107,031,423.34
  5. Step 5: Solve for x
    x = 11,107,031,423.34/120,506.72
  6. Step 6: Final answer
    x = 92,169.40

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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.