Home / 120,467.13-166,242.69-66,751.98

Finding the Fourth Proportional to 120,467.13, 166,242.69 and 66,751.98

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Solution

The fourth proportional to 120,467.13, 166,242.69 and 66,751.98 is: 92,116.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,467.13 : 166,242.69 = 66,751.98 : x
  2. Step 2: Convert to fraction form
    120,467.13/166,242.69 = 66,751.98/x
  3. Step 3: Cross multiply
    120,467.13x = 166,242.69 × 66,751.98
  4. Step 4: Simplify right side
    120,467.13x = 11,097,028,718.03
  5. Step 5: Solve for x
    x = 11,097,028,718.03/120,467.13
  6. Step 6: Final answer
    x = 92,116.65

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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.