Home / 120,931.22-166,871.80-69,936.32

Finding the Fourth Proportional to 120,931.22, 166,871.80 and 69,936.32

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Solution

The fourth proportional to 120,931.22, 166,871.80 and 69,936.32 is: 96,504.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,931.22 : 166,871.80 = 69,936.32 : x
  2. Step 2: Convert to fraction form
    120,931.22/166,871.80 = 69,936.32/x
  3. Step 3: Cross multiply
    120,931.22x = 166,871.80 × 69,936.32
  4. Step 4: Simplify right side
    120,931.22x = 11,670,399,603.78
  5. Step 5: Solve for x
    x = 11,670,399,603.78/120,931.22
  6. Step 6: Final answer
    x = 96,504.44

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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.