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Finding the Fourth Proportional to 120,650.70, 166,492.32 and 66,935.14

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Solution

The fourth proportional to 120,650.70, 166,492.32 and 66,935.14 is: 92,367.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,650.70 : 166,492.32 = 66,935.14 : x
  2. Step 2: Convert to fraction form
    120,650.70/166,492.32 = 66,935.14/x
  3. Step 3: Cross multiply
    120,650.70x = 166,492.32 × 66,935.14
  4. Step 4: Simplify right side
    120,650.70x = 11,144,186,748.12
  5. Step 5: Solve for x
    x = 11,144,186,748.12/120,650.70
  6. Step 6: Final answer
    x = 92,367.36

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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.