Finding the Fourth Proportional to 145,916.02, 201,363.60 and 78,848.02
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Solution
The fourth proportional to 145,916.02, 201,363.60 and 78,848.02 is: 108,809.99
Step by Step Solution
- Step 1: Write the proportion equation
145,916.02 : 201,363.60 = 78,848.02 : x - Step 2: Convert to fraction form
145,916.02/201,363.60 = 78,848.02/x - Step 3: Cross multiply
145,916.02x = 201,363.60 × 78,848.02 - Step 4: Simplify right side
145,916.02x = 15,877,121,160.07 - Step 5: Solve for x
x = 15,877,121,160.07/145,916.02 - Step 6: Final answer
x = 108,809.99
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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.