Finding the Fourth Proportional to 157,585.47, 236,421.94 and 87,513.99
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Solution
The fourth proportional to 157,585.47, 236,421.94 and 87,513.99 is: 131,295.27
Step by Step Solution
- Step 1: Write the proportion equation
157,585.47 : 236,421.94 = 87,513.99 : x - Step 2: Convert to fraction form
157,585.47/236,421.94 = 87,513.99/x - Step 3: Cross multiply
157,585.47x = 236,421.94 × 87,513.99 - Step 4: Simplify right side
157,585.47x = 20,690,226,110.83 - Step 5: Solve for x
x = 20,690,226,110.83/157,585.47 - Step 6: Final answer
x = 131,295.27
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.