Finding the Fourth Proportional to 99,201.46, 136,876.71 and 58,928.80
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Solution
The fourth proportional to 99,201.46, 136,876.71 and 58,928.80 is: 81,309.09
Step by Step Solution
- Step 1: Write the proportion equation
99,201.46 : 136,876.71 = 58,928.80 : x - Step 2: Convert to fraction form
99,201.46/136,876.71 = 58,928.80/x - Step 3: Cross multiply
99,201.46x = 136,876.71 × 58,928.80 - Step 4: Simplify right side
99,201.46x = 8,065,980,268.25 - Step 5: Solve for x
x = 8,065,980,268.25/99,201.46 - Step 6: Final answer
x = 81,309.09
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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.