Finding the Fourth Proportional to 189,250.07, 261,161.80 and 103,209.71
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Solution
The fourth proportional to 189,250.07, 261,161.80 and 103,209.71 is: 142,427.60
Step by Step Solution
- Step 1: Write the proportion equation
189,250.07 : 261,161.80 = 103,209.71 : x - Step 2: Convert to fraction form
189,250.07/261,161.80 = 103,209.71/x - Step 3: Cross multiply
189,250.07x = 261,161.80 × 103,209.71 - Step 4: Simplify right side
189,250.07x = 26,954,432,077.24 - Step 5: Solve for x
x = 26,954,432,077.24/189,250.07 - Step 6: Final answer
x = 142,427.60
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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.