Finding the Fourth Proportional to 189,146.07, 261,024.66 and 103,104.09
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Solution
The fourth proportional to 189,146.07, 261,024.66 and 103,104.09 is: 142,285.32
Step by Step Solution
- Step 1: Write the proportion equation
189,146.07 : 261,024.66 = 103,104.09 : x - Step 2: Convert to fraction form
189,146.07/261,024.66 = 103,104.09/x - Step 3: Cross multiply
189,146.07x = 261,024.66 × 103,104.09 - Step 4: Simplify right side
189,146.07x = 26,912,710,036.86 - Step 5: Solve for x
x = 26,912,710,036.86/189,146.07 - Step 6: Final answer
x = 142,285.32
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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.