Finding the Fourth Proportional to 99,146.68, 136,813.98 and 56,696.92
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Solution
The fourth proportional to 99,146.68, 136,813.98 and 56,696.92 is: 78,236.92
Step by Step Solution
- Step 1: Write the proportion equation
99,146.68 : 136,813.98 = 56,696.92 : x - Step 2: Convert to fraction form
99,146.68/136,813.98 = 56,696.92/x - Step 3: Cross multiply
99,146.68x = 136,813.98 × 56,696.92 - Step 4: Simplify right side
99,146.68x = 7,756,931,278.94 - Step 5: Solve for x
x = 7,756,931,278.94/99,146.68 - Step 6: Final answer
x = 78,236.92
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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.