Finding the Fourth Proportional to 104,518.11, 144,237.68 and 56,774.19
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Solution
The fourth proportional to 104,518.11, 144,237.68 and 56,774.19 is: 78,349.84
Step by Step Solution
- Step 1: Write the proportion equation
104,518.11 : 144,237.68 = 56,774.19 : x - Step 2: Convert to fraction form
104,518.11/144,237.68 = 56,774.19/x - Step 3: Cross multiply
104,518.11x = 144,237.68 × 56,774.19 - Step 4: Simplify right side
104,518.11x = 8,188,977,165.61 - Step 5: Solve for x
x = 8,188,977,165.61/104,518.11 - Step 6: Final answer
x = 78,349.84
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1.5x scale
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.