Finding the Fourth Proportional to 102,154.84, 140,974.97 and 56,219.77
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Solution
The fourth proportional to 102,154.84, 140,974.97 and 56,219.77 is: 77,583.99
Step by Step Solution
- Step 1: Write the proportion equation
102,154.84 : 140,974.97 = 56,219.77 : x - Step 2: Convert to fraction form
102,154.84/140,974.97 = 56,219.77/x - Step 3: Cross multiply
102,154.84x = 140,974.97 × 56,219.77 - Step 4: Simplify right side
102,154.84x = 7,925,580,177.27 - Step 5: Solve for x
x = 7,925,580,177.27/102,154.84 - Step 6: Final answer
x = 77,583.99
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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.