Finding the Fourth Proportional to 122,616.36, 183,815.55 and 47,718.99
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Solution
The fourth proportional to 122,616.36, 183,815.55 and 47,718.99 is: 71,536.07
Step by Step Solution
- Step 1: Write the proportion equation
122,616.36 : 183,815.55 = 47,718.99 : x - Step 2: Convert to fraction form
122,616.36/183,815.55 = 47,718.99/x - Step 3: Cross multiply
122,616.36x = 183,815.55 × 47,718.99 - Step 4: Simplify right side
122,616.36x = 8,771,492,392.29 - Step 5: Solve for x
x = 8,771,492,392.29/122,616.36 - Step 6: Final answer
x = 71,536.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.