Home / 210,961.89-316,515.74-131,982.03

Finding the Fourth Proportional to 210,961.89, 316,515.74 and 131,982.03

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Solution

The fourth proportional to 210,961.89, 316,515.74 and 131,982.03 is: 198,018.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,961.89 : 316,515.74 = 131,982.03 : x
  2. Step 2: Convert to fraction form
    210,961.89/316,515.74 = 131,982.03/x
  3. Step 3: Cross multiply
    210,961.89x = 316,515.74 × 131,982.03
  4. Step 4: Simplify right side
    210,961.89x = 41,774,389,232.24
  5. Step 5: Solve for x
    x = 41,774,389,232.24/210,961.89
  6. Step 6: Final answer
    x = 198,018.65

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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.