Home / 120,973.58-166,939.89-67,259.78

Finding the Fourth Proportional to 120,973.58, 166,939.89 and 67,259.78

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Solution

The fourth proportional to 120,973.58, 166,939.89 and 67,259.78 is: 92,816.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,973.58 : 166,939.89 = 67,259.78 : x
  2. Step 2: Convert to fraction form
    120,973.58/166,939.89 = 67,259.78/x
  3. Step 3: Cross multiply
    120,973.58x = 166,939.89 × 67,259.78
  4. Step 4: Simplify right side
    120,973.58x = 11,228,340,274.62
  5. Step 5: Solve for x
    x = 11,228,340,274.62/120,973.58
  6. Step 6: Final answer
    x = 92,816.47

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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.