Finding the Fourth Proportional to 115,403.93, 159,283.99 and 67,672.66
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Solution
The fourth proportional to 115,403.93, 159,283.99 and 67,672.66 is: 93,403.85
Step by Step Solution
- Step 1: Write the proportion equation
115,403.93 : 159,283.99 = 67,672.66 : x - Step 2: Convert to fraction form
115,403.93/159,283.99 = 67,672.66/x - Step 3: Cross multiply
115,403.93x = 159,283.99 × 67,672.66 - Step 4: Simplify right side
115,403.93x = 10,779,171,026.09 - Step 5: Solve for x
x = 10,779,171,026.09/115,403.93 - Step 6: Final answer
x = 93,403.85
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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.