Finding the Fourth Proportional to 97,711.90, 137,107.70 and 97,711.90
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Solution
The fourth proportional to 97,711.90, 137,107.70 and 97,711.90 is: 137,107.70
Step by Step Solution
- Step 1: Write the proportion equation
97,711.90 : 137,107.70 = 97,711.90 : x - Step 2: Convert to fraction form
97,711.90/137,107.70 = 97,711.90/x - Step 3: Cross multiply
97,711.90x = 137,107.70 × 97,711.90 - Step 4: Simplify right side
97,711.90x = 13,397,053,871.63 - Step 5: Solve for x
x = 13,397,053,871.63/97,711.90 - Step 6: Final answer
x = 137,107.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.