Finding the Fourth Proportional to 135,693.60, 187,268.66 and 75,283.70
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Solution
The fourth proportional to 135,693.60, 187,268.66 and 75,283.70 is: 103,897.87
Step by Step Solution
- Step 1: Write the proportion equation
135,693.60 : 187,268.66 = 75,283.70 : x - Step 2: Convert to fraction form
135,693.60/187,268.66 = 75,283.70/x - Step 3: Cross multiply
135,693.60x = 187,268.66 × 75,283.70 - Step 4: Simplify right side
135,693.60x = 14,098,276,306.08 - Step 5: Solve for x
x = 14,098,276,306.08/135,693.60 - Step 6: Final answer
x = 103,897.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.