Finding the Fourth Proportional to 118,745.24, 163,868.96 and 65,030.63
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Solution
The fourth proportional to 118,745.24, 163,868.96 and 65,030.63 is: 89,742.56
Step by Step Solution
- Step 1: Write the proportion equation
118,745.24 : 163,868.96 = 65,030.63 : x - Step 2: Convert to fraction form
118,745.24/163,868.96 = 65,030.63/x - Step 3: Cross multiply
118,745.24x = 163,868.96 × 65,030.63 - Step 4: Simplify right side
118,745.24x = 10,656,501,706.24 - Step 5: Solve for x
x = 10,656,501,706.24/118,745.24 - Step 6: Final answer
x = 89,742.56
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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.