Home / 122,969.21-184,426.12-80,261.20

Finding the Fourth Proportional to 122,969.21, 184,426.12 and 80,261.20

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Solution

The fourth proportional to 122,969.21, 184,426.12 and 80,261.20 is: 120,373.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,969.21 : 184,426.12 = 80,261.20 : x
  2. Step 2: Convert to fraction form
    122,969.21/184,426.12 = 80,261.20/x
  3. Step 3: Cross multiply
    122,969.21x = 184,426.12 × 80,261.20
  4. Step 4: Simplify right side
    122,969.21x = 14,802,261,040.83
  5. Step 5: Solve for x
    x = 14,802,261,040.83/122,969.21
  6. Step 6: Final answer
    x = 120,373.72

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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.