Home / 124,883.02-172,286.30-81,872.84

Finding the Fourth Proportional to 124,883.02, 172,286.30 and 81,872.84

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Solution

The fourth proportional to 124,883.02, 172,286.30 and 81,872.84 is: 112,950.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,883.02 : 172,286.30 = 81,872.84 : x
  2. Step 2: Convert to fraction form
    124,883.02/172,286.30 = 81,872.84/x
  3. Step 3: Cross multiply
    124,883.02x = 172,286.30 × 81,872.84
  4. Step 4: Simplify right side
    124,883.02x = 14,105,568,674.09
  5. Step 5: Solve for x
    x = 14,105,568,674.09/124,883.02
  6. Step 6: Final answer
    x = 112,950.25

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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.