Finding the Fourth Proportional to 112,454.95, 155,187.70 and 61,468.02
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Solution
The fourth proportional to 112,454.95, 155,187.70 and 61,468.02 is: 84,825.79
Step by Step Solution
- Step 1: Write the proportion equation
112,454.95 : 155,187.70 = 61,468.02 : x - Step 2: Convert to fraction form
112,454.95/155,187.70 = 61,468.02/x - Step 3: Cross multiply
112,454.95x = 155,187.70 × 61,468.02 - Step 4: Simplify right side
112,454.95x = 9,539,080,142.24 - Step 5: Solve for x
x = 9,539,080,142.24/112,454.95 - Step 6: Final answer
x = 84,825.79
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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.