Finding the Fourth Proportional to 140,318.84, 209,454.67 and 122,603.96
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Solution
The fourth proportional to 140,318.84, 209,454.67 and 122,603.96 is: 183,011.58
Step by Step Solution
- Step 1: Write the proportion equation
140,318.84 : 209,454.67 = 122,603.96 : x - Step 2: Convert to fraction form
140,318.84/209,454.67 = 122,603.96/x - Step 3: Cross multiply
140,318.84x = 209,454.67 × 122,603.96 - Step 4: Simplify right side
140,318.84x = 25,679,971,982.49 - Step 5: Solve for x
x = 25,679,971,982.49/140,318.84 - Step 6: Final answer
x = 183,011.58
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.