Finding the Fourth Proportional to 117,056.97, 161,703.86 and 93,153.06
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Solution
The fourth proportional to 117,056.97, 161,703.86 and 93,153.06 is: 128,682.72
Step by Step Solution
- Step 1: Write the proportion equation
117,056.97 : 161,703.86 = 93,153.06 : x - Step 2: Convert to fraction form
117,056.97/161,703.86 = 93,153.06/x - Step 3: Cross multiply
117,056.97x = 161,703.86 × 93,153.06 - Step 4: Simplify right side
117,056.97x = 15,063,208,907.05 - Step 5: Solve for x
x = 15,063,208,907.05/117,056.97 - Step 6: Final answer
x = 128,682.72
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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.