Home / 120,659.40-166,534.20-69,680.43

Finding the Fourth Proportional to 120,659.40, 166,534.20 and 69,680.43

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Solution

The fourth proportional to 120,659.40, 166,534.20 and 69,680.43 is: 96,172.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,659.40 : 166,534.20 = 69,680.43 : x
  2. Step 2: Convert to fraction form
    120,659.40/166,534.20 = 69,680.43/x
  3. Step 3: Cross multiply
    120,659.40x = 166,534.20 × 69,680.43
  4. Step 4: Simplify right side
    120,659.40x = 11,604,174,393.30
  5. Step 5: Solve for x
    x = 11,604,174,393.30/120,659.40
  6. Step 6: Final answer
    x = 96,172.98

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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.