Finding the Fourth Proportional to 122,424.05, 168,961.68 and 68,712.01
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Solution
The fourth proportional to 122,424.05, 168,961.68 and 68,712.01 is: 94,831.82
Step by Step Solution
- Step 1: Write the proportion equation
122,424.05 : 168,961.68 = 68,712.01 : x - Step 2: Convert to fraction form
122,424.05/168,961.68 = 68,712.01/x - Step 3: Cross multiply
122,424.05x = 168,961.68 × 68,712.01 - Step 4: Simplify right side
122,424.05x = 11,609,696,051.59 - Step 5: Solve for x
x = 11,609,696,051.59/122,424.05 - Step 6: Final answer
x = 94,831.82
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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.