Finding the Fourth Proportional to 78,266.16, 117,400.36 and 19,102.94
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Solution
The fourth proportional to 78,266.16, 117,400.36 and 19,102.94 is: 28,654.68
Step by Step Solution
- Step 1: Write the proportion equation
78,266.16 : 117,400.36 = 19,102.94 : x - Step 2: Convert to fraction form
78,266.16/117,400.36 = 19,102.94/x - Step 3: Cross multiply
78,266.16x = 117,400.36 × 19,102.94 - Step 4: Simplify right side
78,266.16x = 2,242,692,033.06 - Step 5: Solve for x
x = 2,242,692,033.06/78,266.16 - Step 6: Final answer
x = 28,654.68
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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.