Home / 120,469.78-166,254.93-66,753.62

Finding the Fourth Proportional to 120,469.78, 166,254.93 and 66,753.62

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Solution

The fourth proportional to 120,469.78, 166,254.93 and 66,753.62 is: 92,123.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,469.78 : 166,254.93 = 66,753.62 : x
  2. Step 2: Convert to fraction form
    120,469.78/166,254.93 = 66,753.62/x
  3. Step 3: Cross multiply
    120,469.78x = 166,254.93 × 66,753.62
  4. Step 4: Simplify right side
    120,469.78x = 11,098,118,212.53
  5. Step 5: Solve for x
    x = 11,098,118,212.53/120,469.78
  6. Step 6: Final answer
    x = 92,123.67

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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.