Finding the Fourth Proportional to 135,188.08, 186,543.14 and 74,750.47
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Solution
The fourth proportional to 135,188.08, 186,543.14 and 74,750.47 is: 103,146.57
Step by Step Solution
- Step 1: Write the proportion equation
135,188.08 : 186,543.14 = 74,750.47 : x - Step 2: Convert to fraction form
135,188.08/186,543.14 = 74,750.47/x - Step 3: Cross multiply
135,188.08x = 186,543.14 × 74,750.47 - Step 4: Simplify right side
135,188.08x = 13,944,186,550.17 - Step 5: Solve for x
x = 13,944,186,550.17/135,188.08 - Step 6: Final answer
x = 103,146.57
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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.