Finding the Fourth Proportional to 130,517.40, 180,110.26 and 76,790.08
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Solution
The fourth proportional to 130,517.40, 180,110.26 and 76,790.08 is: 105,968.10
Step by Step Solution
- Step 1: Write the proportion equation
130,517.40 : 180,110.26 = 76,790.08 : x - Step 2: Convert to fraction form
130,517.40/180,110.26 = 76,790.08/x - Step 3: Cross multiply
130,517.40x = 180,110.26 × 76,790.08 - Step 4: Simplify right side
130,517.40x = 13,830,681,274.22 - Step 5: Solve for x
x = 13,830,681,274.22/130,517.40 - Step 6: Final answer
x = 105,968.10
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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.