Home / 120,493.40-166,274.90-66,777.94

Finding the Fourth Proportional to 120,493.40, 166,274.90 and 66,777.94

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Solution

The fourth proportional to 120,493.40, 166,274.90 and 66,777.94 is: 92,150.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,493.40 : 166,274.90 = 66,777.94 : x
  2. Step 2: Convert to fraction form
    120,493.40/166,274.90 = 66,777.94/x
  3. Step 3: Cross multiply
    120,493.40x = 166,274.90 × 66,777.94
  4. Step 4: Simplify right side
    120,493.40x = 11,103,495,295.71
  5. Step 5: Solve for x
    x = 11,103,495,295.71/120,493.40
  6. Step 6: Final answer
    x = 92,150.24

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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.