Finding the Fourth Proportional to 114,930.26, 158,513.88 and 74,656.99
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Solution
The fourth proportional to 114,930.26, 158,513.88 and 74,656.99 is: 102,968.26
Step by Step Solution
- Step 1: Write the proportion equation
114,930.26 : 158,513.88 = 74,656.99 : x - Step 2: Convert to fraction form
114,930.26/158,513.88 = 74,656.99/x - Step 3: Cross multiply
114,930.26x = 158,513.88 × 74,656.99 - Step 4: Simplify right side
114,930.26x = 11,834,169,154.02 - Step 5: Solve for x
x = 11,834,169,154.02/114,930.26 - Step 6: Final answer
x = 102,968.26
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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.