Home / 120,546.64-166,347.72-66,828.52

Finding the Fourth Proportional to 120,546.64, 166,347.72 and 66,828.52

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Solution

The fourth proportional to 120,546.64, 166,347.72 and 66,828.52 is: 92,219.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,546.64 : 166,347.72 = 66,828.52 : x
  2. Step 2: Convert to fraction form
    120,546.64/166,347.72 = 66,828.52/x
  3. Step 3: Cross multiply
    120,546.64x = 166,347.72 × 66,828.52
  4. Step 4: Simplify right side
    120,546.64x = 11,116,771,932.97
  5. Step 5: Solve for x
    x = 11,116,771,932.97/120,546.64
  6. Step 6: Final answer
    x = 92,219.67

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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.