Finding the Fourth Proportional to 97,876.90, 137,338.70 and 97,876.90
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Solution
The fourth proportional to 97,876.90, 137,338.70 and 97,876.90 is: 137,338.70
Step by Step Solution
- Step 1: Write the proportion equation
97,876.90 : 137,338.70 = 97,876.90 : x - Step 2: Convert to fraction form
97,876.90/137,338.70 = 97,876.90/x - Step 3: Cross multiply
97,876.90x = 137,338.70 × 97,876.90 - Step 4: Simplify right side
97,876.90x = 13,442,286,206.03 - Step 5: Solve for x
x = 13,442,286,206.03/97,876.90 - Step 6: Final answer
x = 137,338.70
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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.