Finding the Fourth Proportional to 131,332.08, 181,312.92 and 86,749.68
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Solution
The fourth proportional to 131,332.08, 181,312.92 and 86,749.68 is: 119,763.87
Step by Step Solution
- Step 1: Write the proportion equation
131,332.08 : 181,312.92 = 86,749.68 : x - Step 2: Convert to fraction form
131,332.08/181,312.92 = 86,749.68/x - Step 3: Cross multiply
131,332.08x = 181,312.92 × 86,749.68 - Step 4: Simplify right side
131,332.08x = 15,728,837,789.87 - Step 5: Solve for x
x = 15,728,837,789.87/131,332.08 - Step 6: Final answer
x = 119,763.87
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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.