Finding the Fourth Proportional to 107,260.62, 147,981.38 and 66,959.08
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Solution
The fourth proportional to 107,260.62, 147,981.38 and 66,959.08 is: 92,379.64
Step by Step Solution
- Step 1: Write the proportion equation
107,260.62 : 147,981.38 = 66,959.08 : x - Step 2: Convert to fraction form
107,260.62/147,981.38 = 66,959.08/x - Step 3: Cross multiply
107,260.62x = 147,981.38 × 66,959.08 - Step 4: Simplify right side
107,260.62x = 9,908,697,061.93 - Step 5: Solve for x
x = 9,908,697,061.93/107,260.62 - Step 6: Final answer
x = 92,379.64
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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.