Finding the Fourth Proportional to 145,916.44, 201,364.79 and 78,848.44
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Solution
The fourth proportional to 145,916.44, 201,364.79 and 78,848.44 is: 108,810.90
Step by Step Solution
- Step 1: Write the proportion equation
145,916.44 : 201,364.79 = 78,848.44 : x - Step 2: Convert to fraction form
145,916.44/201,364.79 = 78,848.44/x - Step 3: Cross multiply
145,916.44x = 201,364.79 × 78,848.44 - Step 4: Simplify right side
145,916.44x = 15,877,298,664.77 - Step 5: Solve for x
x = 15,877,298,664.77/145,916.44 - Step 6: Final answer
x = 108,810.90
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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.