Finding the Fourth Proportional to 97,940.13, 135,157.37 and 53,228.13
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Solution
The fourth proportional to 97,940.13, 135,157.37 and 53,228.13 is: 73,454.81
Step by Step Solution
- Step 1: Write the proportion equation
97,940.13 : 135,157.37 = 53,228.13 : x - Step 2: Convert to fraction form
97,940.13/135,157.37 = 53,228.13/x - Step 3: Cross multiply
97,940.13x = 135,157.37 × 53,228.13 - Step 4: Simplify right side
97,940.13x = 7,194,174,060.82 - Step 5: Solve for x
x = 7,194,174,060.82/97,940.13 - Step 6: Final answer
x = 73,454.81
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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.