Finding the Fourth Proportional to 97,715.30, 146,572.95 and 87,865.70
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Solution
The fourth proportional to 97,715.30, 146,572.95 and 87,865.70 is: 131,798.55
Step by Step Solution
- Step 1: Write the proportion equation
97,715.30 : 146,572.95 = 87,865.70 : x - Step 2: Convert to fraction form
97,715.30/146,572.95 = 87,865.70/x - Step 3: Cross multiply
97,715.30x = 146,572.95 × 87,865.70 - Step 4: Simplify right side
97,715.30x = 12,878,734,852.82 - Step 5: Solve for x
x = 12,878,734,852.82/97,715.30 - Step 6: Final answer
x = 131,798.55
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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.