Finding the Fourth Proportional to 117,934.36, 177,024.66 and 103,985.08
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Solution
The fourth proportional to 117,934.36, 177,024.66 and 103,985.08 is: 156,086.18
Step by Step Solution
- Step 1: Write the proportion equation
117,934.36 : 177,024.66 = 103,985.08 : x - Step 2: Convert to fraction form
117,934.36/177,024.66 = 103,985.08/x - Step 3: Cross multiply
117,934.36x = 177,024.66 × 103,985.08 - Step 4: Simplify right side
117,934.36x = 18,407,923,432.07 - Step 5: Solve for x
x = 18,407,923,432.07/117,934.36 - Step 6: Final answer
x = 156,086.18
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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.