Finding the Fourth Proportional to 131,352.13, 181,266.14 and 74,763.50
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Solution
The fourth proportional to 131,352.13, 181,266.14 and 74,763.50 is: 103,173.75
Step by Step Solution
- Step 1: Write the proportion equation
131,352.13 : 181,266.14 = 74,763.50 : x - Step 2: Convert to fraction form
131,352.13/181,266.14 = 74,763.50/x - Step 3: Cross multiply
131,352.13x = 181,266.14 × 74,763.50 - Step 4: Simplify right side
131,352.13x = 13,552,090,684.07 - Step 5: Solve for x
x = 13,552,090,684.07/131,352.13 - Step 6: Final answer
x = 103,173.75
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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.