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Finding the Fourth Proportional to 120,999.37, 181,380.58 and 67,717.37

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Solution

The fourth proportional to 120,999.37, 181,380.58 and 67,717.37 is: 101,509.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,999.37 : 181,380.58 = 67,717.37 : x
  2. Step 2: Convert to fraction form
    120,999.37/181,380.58 = 67,717.37/x
  3. Step 3: Cross multiply
    120,999.37x = 181,380.58 × 67,717.37
  4. Step 4: Simplify right side
    120,999.37x = 12,282,614,601.18
  5. Step 5: Solve for x
    x = 12,282,614,601.18/120,999.37
  6. Step 6: Final answer
    x = 101,509.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.