Home / 120,720.02-166,592.34-67,005.50

Finding the Fourth Proportional to 120,720.02, 166,592.34 and 67,005.50

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Solution

The fourth proportional to 120,720.02, 166,592.34 and 67,005.50 is: 92,466.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,720.02 : 166,592.34 = 67,005.50 : x
  2. Step 2: Convert to fraction form
    120,720.02/166,592.34 = 67,005.50/x
  3. Step 3: Cross multiply
    120,720.02x = 166,592.34 × 67,005.50
  4. Step 4: Simplify right side
    120,720.02x = 11,162,603,037.87
  5. Step 5: Solve for x
    x = 11,162,603,037.87/120,720.02
  6. Step 6: Final answer
    x = 92,466.88

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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.