Finding the Fourth Proportional to 145,916.91, 201,365.33 and 78,848.91
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Solution
The fourth proportional to 145,916.91, 201,365.33 and 78,848.91 is: 108,811.49
Step by Step Solution
- Step 1: Write the proportion equation
145,916.91 : 201,365.33 = 78,848.91 : x - Step 2: Convert to fraction form
145,916.91/201,365.33 = 78,848.91/x - Step 3: Cross multiply
145,916.91x = 201,365.33 × 78,848.91 - Step 4: Simplify right side
145,916.91x = 15,877,436,388.05 - Step 5: Solve for x
x = 15,877,436,388.05/145,916.91 - Step 6: Final answer
x = 108,811.49
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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.