Home / 256,820.70-385,301.94-107,131.36

Finding the Fourth Proportional to 256,820.70, 385,301.94 and 107,131.36

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Solution

The fourth proportional to 256,820.70, 385,301.94 and 107,131.36 is: 160,726.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,820.70 : 385,301.94 = 107,131.36 : x
  2. Step 2: Convert to fraction form
    256,820.70/385,301.94 = 107,131.36/x
  3. Step 3: Cross multiply
    256,820.70x = 385,301.94 × 107,131.36
  4. Step 4: Simplify right side
    256,820.70x = 41,277,920,842.84
  5. Step 5: Solve for x
    x = 41,277,920,842.84/256,820.70
  6. Step 6: Final answer
    x = 160,726.61

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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.