Home / 120,645.46-166,482.90-66,930.34

Finding the Fourth Proportional to 120,645.46, 166,482.90 and 66,930.34

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Solution

The fourth proportional to 120,645.46, 166,482.90 and 66,930.34 is: 92,359.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,645.46 : 166,482.90 = 66,930.34 : x
  2. Step 2: Convert to fraction form
    120,645.46/166,482.90 = 66,930.34/x
  3. Step 3: Cross multiply
    120,645.46x = 166,482.90 × 66,930.34
  4. Step 4: Simplify right side
    120,645.46x = 11,142,757,101.19
  5. Step 5: Solve for x
    x = 11,142,757,101.19/120,645.46
  6. Step 6: Final answer
    x = 92,359.52

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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.