Finding the Fourth Proportional to 118,972.62, 164,125.62 and 71,216.80
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Solution
The fourth proportional to 118,972.62, 164,125.62 and 71,216.80 is: 98,245.31
Step by Step Solution
- Step 1: Write the proportion equation
118,972.62 : 164,125.62 = 71,216.80 : x - Step 2: Convert to fraction form
118,972.62/164,125.62 = 71,216.80/x - Step 3: Cross multiply
118,972.62x = 164,125.62 × 71,216.80 - Step 4: Simplify right side
118,972.62x = 11,688,501,454.42 - Step 5: Solve for x
x = 11,688,501,454.42/118,972.62 - Step 6: Final answer
x = 98,245.31
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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.