Home / 120,479.39-166,262.89-66,765.45

Finding the Fourth Proportional to 120,479.39, 166,262.89 and 66,765.45

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Solution

The fourth proportional to 120,479.39, 166,262.89 and 66,765.45 is: 92,137.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,479.39 : 166,262.89 = 66,765.45 : x
  2. Step 2: Convert to fraction form
    120,479.39/166,262.89 = 66,765.45/x
  3. Step 3: Cross multiply
    120,479.39x = 166,262.89 × 66,765.45
  4. Step 4: Simplify right side
    120,479.39x = 11,100,616,669.15
  5. Step 5: Solve for x
    x = 11,100,616,669.15/120,479.39
  6. Step 6: Final answer
    x = 92,137.06

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1.5x scale

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.