Home / 120,988.63-166,977.06-69,309.85

Finding the Fourth Proportional to 120,988.63, 166,977.06 and 69,309.85

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Solution

The fourth proportional to 120,988.63, 166,977.06 and 69,309.85 is: 95,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,988.63 : 166,977.06 = 69,309.85 : x
  2. Step 2: Convert to fraction form
    120,988.63/166,977.06 = 69,309.85/x
  3. Step 3: Cross multiply
    120,988.63x = 166,977.06 × 69,309.85
  4. Step 4: Simplify right side
    120,988.63x = 11,573,154,982.04
  5. Step 5: Solve for x
    x = 11,573,154,982.04/120,988.63
  6. Step 6: Final answer
    x = 95,654.90

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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.