Finding the Fourth Proportional to 171,114.72, 256,737.68 and 71,248.09
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Solution
The fourth proportional to 171,114.72, 256,737.68 and 71,248.09 is: 106,899.45
Step by Step Solution
- Step 1: Write the proportion equation
171,114.72 : 256,737.68 = 71,248.09 : x - Step 2: Convert to fraction form
171,114.72/256,737.68 = 71,248.09/x - Step 3: Cross multiply
171,114.72x = 256,737.68 × 71,248.09 - Step 4: Simplify right side
171,114.72x = 18,292,069,331.03 - Step 5: Solve for x
x = 18,292,069,331.03/171,114.72 - Step 6: Final answer
x = 106,899.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.