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Finding the Fourth Proportional to 210,099.88, 289,939.93 and 114,608.57

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Solution

The fourth proportional to 210,099.88, 289,939.93 and 114,608.57 is: 158,160.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,099.88 : 289,939.93 = 114,608.57 : x
  2. Step 2: Convert to fraction form
    210,099.88/289,939.93 = 114,608.57/x
  3. Step 3: Cross multiply
    210,099.88x = 289,939.93 × 114,608.57
  4. Step 4: Simplify right side
    210,099.88x = 33,229,601,201.53
  5. Step 5: Solve for x
    x = 33,229,601,201.53/210,099.88
  6. Step 6: Final answer
    x = 158,160.97

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1.5x scale

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.