Finding the Fourth Proportional to 104,296.34, 143,929.26 and 56,549.70
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Solution
The fourth proportional to 104,296.34, 143,929.26 and 56,549.70 is: 78,038.75
Step by Step Solution
- Step 1: Write the proportion equation
104,296.34 : 143,929.26 = 56,549.70 : x - Step 2: Convert to fraction form
104,296.34/143,929.26 = 56,549.70/x - Step 3: Cross multiply
104,296.34x = 143,929.26 × 56,549.70 - Step 4: Simplify right side
104,296.34x = 8,139,156,474.22 - Step 5: Solve for x
x = 8,139,156,474.22/104,296.34 - Step 6: Final answer
x = 78,038.75
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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.