Home / 131,392.02-181,321.20-74,803.44

Finding the Fourth Proportional to 131,392.02, 181,321.20 and 74,803.44

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Solution

The fourth proportional to 131,392.02, 181,321.20 and 74,803.44 is: 103,228.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,392.02 : 181,321.20 = 74,803.44 : x
  2. Step 2: Convert to fraction form
    131,392.02/181,321.20 = 74,803.44/x
  3. Step 3: Cross multiply
    131,392.02x = 181,321.20 × 74,803.44
  4. Step 4: Simplify right side
    131,392.02x = 13,563,449,504.93
  5. Step 5: Solve for x
    x = 13,563,449,504.93/131,392.02
  6. Step 6: Final answer
    x = 103,228.87

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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.