Home / 120,400.02-166,153.44-66,685.98

Finding the Fourth Proportional to 120,400.02, 166,153.44 and 66,685.98

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Solution

The fourth proportional to 120,400.02, 166,153.44 and 66,685.98 is: 92,027.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,400.02 : 166,153.44 = 66,685.98 : x
  2. Step 2: Convert to fraction form
    120,400.02/166,153.44 = 66,685.98/x
  3. Step 3: Cross multiply
    120,400.02x = 166,153.44 × 66,685.98
  4. Step 4: Simplify right side
    120,400.02x = 11,080,104,976.77
  5. Step 5: Solve for x
    x = 11,080,104,976.77/120,400.02
  6. Step 6: Final answer
    x = 92,027.43

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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.