Finding the Fourth Proportional to 122,345.56, 168,849.66 and 68,645.08
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Solution
The fourth proportional to 122,345.56, 168,849.66 and 68,645.08 is: 94,737.38
Step by Step Solution
- Step 1: Write the proportion equation
122,345.56 : 168,849.66 = 68,645.08 : x - Step 2: Convert to fraction form
122,345.56/168,849.66 = 68,645.08/x - Step 3: Cross multiply
122,345.56x = 168,849.66 × 68,645.08 - Step 4: Simplify right side
122,345.56x = 11,590,698,418.67 - Step 5: Solve for x
x = 11,590,698,418.67/122,345.56 - Step 6: Final answer
x = 94,737.38
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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.