Finding the Fourth Proportional to 97,815.30, 146,722.95 and 91,205.70
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Solution
The fourth proportional to 97,815.30, 146,722.95 and 91,205.70 is: 136,808.55
Step by Step Solution
- Step 1: Write the proportion equation
97,815.30 : 146,722.95 = 91,205.70 : x - Step 2: Convert to fraction form
97,815.30/146,722.95 = 91,205.70/x - Step 3: Cross multiply
97,815.30x = 146,722.95 × 91,205.70 - Step 4: Simplify right side
97,815.30x = 13,381,969,360.82 - Step 5: Solve for x
x = 13,381,969,360.82/97,815.30 - Step 6: Final answer
x = 136,808.55
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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.