Finding the Fourth Proportional to 119,948.22, 165,489.21 and 72,184.14
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Solution
The fourth proportional to 119,948.22, 165,489.21 and 72,184.14 is: 99,590.44
Step by Step Solution
- Step 1: Write the proportion equation
119,948.22 : 165,489.21 = 72,184.14 : x - Step 2: Convert to fraction form
119,948.22/165,489.21 = 72,184.14/x - Step 3: Cross multiply
119,948.22x = 165,489.21 × 72,184.14 - Step 4: Simplify right side
119,948.22x = 11,945,696,303.13 - Step 5: Solve for x
x = 11,945,696,303.13/119,948.22 - Step 6: Final answer
x = 99,590.44
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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.