Finding the Fourth Proportional to 84,815.70, 118,897.50 and 84,815.70
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Solution
The fourth proportional to 84,815.70, 118,897.50 and 84,815.70 is: 118,897.50
Step by Step Solution
- Step 1: Write the proportion equation
84,815.70 : 118,897.50 = 84,815.70 : x - Step 2: Convert to fraction form
84,815.70/118,897.50 = 84,815.70/x - Step 3: Cross multiply
84,815.70x = 118,897.50 × 84,815.70 - Step 4: Simplify right side
84,815.70x = 10,084,374,690.75 - Step 5: Solve for x
x = 10,084,374,690.75/84,815.70 - Step 6: Final answer
x = 118,897.50
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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.