Finding the Fourth Proportional to 129,946.08, 179,269.68 and 76,247.52
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Solution
The fourth proportional to 129,946.08, 179,269.68 and 76,247.52 is: 105,188.77
Step by Step Solution
- Step 1: Write the proportion equation
129,946.08 : 179,269.68 = 76,247.52 : x - Step 2: Convert to fraction form
129,946.08/179,269.68 = 76,247.52/x - Step 3: Cross multiply
129,946.08x = 179,269.68 × 76,247.52 - Step 4: Simplify right side
129,946.08x = 13,668,868,511.19 - Step 5: Solve for x
x = 13,668,868,511.19/129,946.08 - Step 6: Final answer
x = 105,188.77
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1.5x scale
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.