Home / 120,896.18-166,836.81-67,186.20

Finding the Fourth Proportional to 120,896.18, 166,836.81 and 67,186.20

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Solution

The fourth proportional to 120,896.18, 166,836.81 and 67,186.20 is: 92,717.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,896.18 : 166,836.81 = 67,186.20 : x
  2. Step 2: Convert to fraction form
    120,896.18/166,836.81 = 67,186.20/x
  3. Step 3: Cross multiply
    120,896.18x = 166,836.81 × 67,186.20
  4. Step 4: Simplify right side
    120,896.18x = 11,209,131,284.02
  5. Step 5: Solve for x
    x = 11,209,131,284.02/120,896.18
  6. Step 6: Final answer
    x = 92,717.00

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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.