Finding the Fourth Proportional to 118,787.09, 163,926.38 and 65,070.93
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Solution
The fourth proportional to 118,787.09, 163,926.38 and 65,070.93 is: 89,797.99
Step by Step Solution
- Step 1: Write the proportion equation
118,787.09 : 163,926.38 = 65,070.93 : x - Step 2: Convert to fraction form
118,787.09/163,926.38 = 65,070.93/x - Step 3: Cross multiply
118,787.09x = 163,926.38 × 65,070.93 - Step 4: Simplify right side
118,787.09x = 10,666,841,672.78 - Step 5: Solve for x
x = 10,666,841,672.78/118,787.09 - Step 6: Final answer
x = 89,797.99
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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.