Finding the Fourth Proportional to 118,998.36, 163,902.40 and 88,686.72
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Solution
The fourth proportional to 118,998.36, 163,902.40 and 88,686.72 is: 122,152.66
Step by Step Solution
- Step 1: Write the proportion equation
118,998.36 : 163,902.40 = 88,686.72 : x - Step 2: Convert to fraction form
118,998.36/163,902.40 = 88,686.72/x - Step 3: Cross multiply
118,998.36x = 163,902.40 × 88,686.72 - Step 4: Simplify right side
118,998.36x = 14,535,966,256.13 - Step 5: Solve for x
x = 14,535,966,256.13/118,998.36 - Step 6: Final answer
x = 122,152.66
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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.