Finding the Fourth Proportional to 119,279.13, 164,603.30 and 65,562.99
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Solution
The fourth proportional to 119,279.13, 164,603.30 and 65,562.99 is: 90,475.88
Step by Step Solution
- Step 1: Write the proportion equation
119,279.13 : 164,603.30 = 65,562.99 : x - Step 2: Convert to fraction form
119,279.13/164,603.30 = 65,562.99/x - Step 3: Cross multiply
119,279.13x = 164,603.30 × 65,562.99 - Step 4: Simplify right side
119,279.13x = 10,791,884,675.77 - Step 5: Solve for x
x = 10,791,884,675.77/119,279.13 - Step 6: Final answer
x = 90,475.88
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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.