Finding the Fourth Proportional to 116,307.36, 160,585.20 and 78,125.04
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Solution
The fourth proportional to 116,307.36, 160,585.20 and 78,125.04 is: 107,866.99
Step by Step Solution
- Step 1: Write the proportion equation
116,307.36 : 160,585.20 = 78,125.04 : x - Step 2: Convert to fraction form
116,307.36/160,585.20 = 78,125.04/x - Step 3: Cross multiply
116,307.36x = 160,585.20 × 78,125.04 - Step 4: Simplify right side
116,307.36x = 12,545,725,173.41 - Step 5: Solve for x
x = 12,545,725,173.41/116,307.36 - Step 6: Final answer
x = 107,866.99
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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.