Home / 171,021.77-256,588.02-82,263.72

Finding the Fourth Proportional to 171,021.77, 256,588.02 and 82,263.72

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Solution

The fourth proportional to 171,021.77, 256,588.02 and 82,263.72 is: 123,422.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,021.77 : 256,588.02 = 82,263.72 : x
  2. Step 2: Convert to fraction form
    171,021.77/256,588.02 = 82,263.72/x
  3. Step 3: Cross multiply
    171,021.77x = 256,588.02 × 82,263.72
  4. Step 4: Simplify right side
    171,021.77x = 21,107,885,032.63
  5. Step 5: Solve for x
    x = 21,107,885,032.63/171,021.77
  6. Step 6: Final answer
    x = 123,422.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.