Finding the Fourth Proportional to 98,668.08, 136,159.92 and 53,956.08
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Solution
The fourth proportional to 98,668.08, 136,159.92 and 53,956.08 is: 74,458.28
Step by Step Solution
- Step 1: Write the proportion equation
98,668.08 : 136,159.92 = 53,956.08 : x - Step 2: Convert to fraction form
98,668.08/136,159.92 = 53,956.08/x - Step 3: Cross multiply
98,668.08x = 136,159.92 × 53,956.08 - Step 4: Simplify right side
98,668.08x = 7,346,655,536.31 - Step 5: Solve for x
x = 7,346,655,536.31/98,668.08 - Step 6: Final answer
x = 74,458.28
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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.