Finding the Fourth Proportional to 103,897.08, 155,845.62 and 83,251.80
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Solution
The fourth proportional to 103,897.08, 155,845.62 and 83,251.80 is: 124,877.70
Step by Step Solution
- Step 1: Write the proportion equation
103,897.08 : 155,845.62 = 83,251.80 : x - Step 2: Convert to fraction form
103,897.08/155,845.62 = 83,251.80/x - Step 3: Cross multiply
103,897.08x = 155,845.62 × 83,251.80 - Step 4: Simplify right side
103,897.08x = 12,974,428,387.12 - Step 5: Solve for x
x = 12,974,428,387.12/103,897.08 - Step 6: Final answer
x = 124,877.70
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1.5x scale
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.