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Finding the Fourth Proportional to 120,804.59, 166,710.72 and 67,089.61

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Solution

The fourth proportional to 120,804.59, 166,710.72 and 67,089.61 is: 92,583.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,804.59 : 166,710.72 = 67,089.61 : x
  2. Step 2: Convert to fraction form
    120,804.59/166,710.72 = 67,089.61/x
  3. Step 3: Cross multiply
    120,804.59x = 166,710.72 × 67,089.61
  4. Step 4: Simplify right side
    120,804.59x = 11,184,556,709.85
  5. Step 5: Solve for x
    x = 11,184,556,709.85/120,804.59
  6. Step 6: Final answer
    x = 92,583.87

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1.5x scale

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.