Finding the Fourth Proportional to 168,515.87, 232,156.33 and 117,435.74
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Solution
The fourth proportional to 168,515.87, 232,156.33 and 117,435.74 is: 161,785.65
Step by Step Solution
- Step 1: Write the proportion equation
168,515.87 : 232,156.33 = 117,435.74 : x - Step 2: Convert to fraction form
168,515.87/232,156.33 = 117,435.74/x - Step 3: Cross multiply
168,515.87x = 232,156.33 × 117,435.74 - Step 4: Simplify right side
168,515.87x = 27,263,448,954.86 - Step 5: Solve for x
x = 27,263,448,954.86/168,515.87 - Step 6: Final answer
x = 161,785.65
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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.