Home / 120,510.40-166,304.70-66,796.30

Finding the Fourth Proportional to 120,510.40, 166,304.70 and 66,796.30

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Solution

The fourth proportional to 120,510.40, 166,304.70 and 66,796.30 is: 92,179.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,510.40 : 166,304.70 = 66,796.30 : x
  2. Step 2: Convert to fraction form
    120,510.40/166,304.70 = 66,796.30/x
  3. Step 3: Cross multiply
    120,510.40x = 166,304.70 × 66,796.30
  4. Step 4: Simplify right side
    120,510.40x = 11,108,538,632.61
  5. Step 5: Solve for x
    x = 11,108,538,632.61/120,510.40
  6. Step 6: Final answer
    x = 92,179.09

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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.