Finding the Fourth Proportional to 97,349.72, 134,403.42 and 74,645.09
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Solution
The fourth proportional to 97,349.72, 134,403.42 and 74,645.09 is: 103,056.85
Step by Step Solution
- Step 1: Write the proportion equation
97,349.72 : 134,403.42 = 74,645.09 : x - Step 2: Convert to fraction form
97,349.72/134,403.42 = 74,645.09/x - Step 3: Cross multiply
97,349.72x = 134,403.42 × 74,645.09 - Step 4: Simplify right side
97,349.72x = 10,032,554,710.19 - Step 5: Solve for x
x = 10,032,554,710.19/97,349.72 - Step 6: Final answer
x = 103,056.85
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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.