Finding the Fourth Proportional to 117,059.18, 175,637.36 and 74,986.70
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Solution
The fourth proportional to 117,059.18, 175,637.36 and 74,986.70 is: 112,511.18
Step by Step Solution
- Step 1: Write the proportion equation
117,059.18 : 175,637.36 = 74,986.70 : x - Step 2: Convert to fraction form
117,059.18/175,637.36 = 74,986.70/x - Step 3: Cross multiply
117,059.18x = 175,637.36 × 74,986.70 - Step 4: Simplify right side
117,059.18x = 13,170,465,332.39 - Step 5: Solve for x
x = 13,170,465,332.39/117,059.18 - Step 6: Final answer
x = 112,511.18
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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.