Finding the Fourth Proportional to 122,195.14, 168,581.17 and 76,228.03
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Solution
The fourth proportional to 122,195.14, 168,581.17 and 76,228.03 is: 105,164.66
Step by Step Solution
- Step 1: Write the proportion equation
122,195.14 : 168,581.17 = 76,228.03 : x - Step 2: Convert to fraction form
122,195.14/168,581.17 = 76,228.03/x - Step 3: Cross multiply
122,195.14x = 168,581.17 × 76,228.03 - Step 4: Simplify right side
122,195.14x = 12,850,610,484.20 - Step 5: Solve for x
x = 12,850,610,484.20/122,195.14 - Step 6: Final answer
x = 105,164.66
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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.