Finding the Fourth Proportional to 115,317.96, 159,135.18 and 67,603.09
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Solution
The fourth proportional to 115,317.96, 159,135.18 and 67,603.09 is: 93,290.15
Step by Step Solution
- Step 1: Write the proportion equation
115,317.96 : 159,135.18 = 67,603.09 : x - Step 2: Convert to fraction form
115,317.96/159,135.18 = 67,603.09/x - Step 3: Cross multiply
115,317.96x = 159,135.18 × 67,603.09 - Step 4: Simplify right side
115,317.96x = 10,758,029,895.71 - Step 5: Solve for x
x = 10,758,029,895.71/115,317.96 - Step 6: Final answer
x = 93,290.15
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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.