Home / 120,323.30-166,047.46-66,609.21

Finding the Fourth Proportional to 120,323.30, 166,047.46 and 66,609.21

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Solution

The fourth proportional to 120,323.30, 166,047.46 and 66,609.21 is: 91,921.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,323.30 : 166,047.46 = 66,609.21 : x
  2. Step 2: Convert to fraction form
    120,323.30/166,047.46 = 66,609.21/x
  3. Step 3: Cross multiply
    120,323.30x = 166,047.46 × 66,609.21
  4. Step 4: Simplify right side
    120,323.30x = 11,060,290,133.11
  5. Step 5: Solve for x
    x = 11,060,290,133.11/120,323.30
  6. Step 6: Final answer
    x = 91,921.44

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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.