Finding the Fourth Proportional to 100,366.29, 138,157.79 and 86,748.08
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Solution
The fourth proportional to 100,366.29, 138,157.79 and 86,748.08 is: 119,411.83
Step by Step Solution
- Step 1: Write the proportion equation
100,366.29 : 138,157.79 = 86,748.08 : x - Step 2: Convert to fraction form
100,366.29/138,157.79 = 86,748.08/x - Step 3: Cross multiply
100,366.29x = 138,157.79 × 86,748.08 - Step 4: Simplify right side
100,366.29x = 11,984,921,895.01 - Step 5: Solve for x
x = 11,984,921,895.01/100,366.29 - Step 6: Final answer
x = 119,411.83
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.