Finding the Fourth Proportional to 143,956.36, 215,960.06 and 69,211.99
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Solution
The fourth proportional to 143,956.36, 215,960.06 and 69,211.99 is: 103,830.25
Step by Step Solution
- Step 1: Write the proportion equation
143,956.36 : 215,960.06 = 69,211.99 : x - Step 2: Convert to fraction form
143,956.36/215,960.06 = 69,211.99/x - Step 3: Cross multiply
143,956.36x = 215,960.06 × 69,211.99 - Step 4: Simplify right side
143,956.36x = 14,947,025,513.12 - Step 5: Solve for x
x = 14,947,025,513.12/143,956.36 - Step 6: Final answer
x = 103,830.25
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.