Finding the Fourth Proportional to 97,478.34, 145,884.84 and 81,701.19
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Solution
The fourth proportional to 97,478.34, 145,884.84 and 81,701.19 is: 122,272.96
Step by Step Solution
- Step 1: Write the proportion equation
97,478.34 : 145,884.84 = 81,701.19 : x - Step 2: Convert to fraction form
97,478.34/145,884.84 = 81,701.19/x - Step 3: Cross multiply
97,478.34x = 145,884.84 × 81,701.19 - Step 4: Simplify right side
97,478.34x = 11,918,965,030.96 - Step 5: Solve for x
x = 11,918,965,030.96/97,478.34 - Step 6: Final answer
x = 122,272.96
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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.