Finding the Fourth Proportional to 122,637.40, 169,253.64 and 68,194.99
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Solution
The fourth proportional to 122,637.40, 169,253.64 and 68,194.99 is: 94,116.89
Step by Step Solution
- Step 1: Write the proportion equation
122,637.40 : 169,253.64 = 68,194.99 : x - Step 2: Convert to fraction form
122,637.40/169,253.64 = 68,194.99/x - Step 3: Cross multiply
122,637.40x = 169,253.64 × 68,194.99 - Step 4: Simplify right side
122,637.40x = 11,542,249,946.29 - Step 5: Solve for x
x = 11,542,249,946.29/122,637.40 - Step 6: Final answer
x = 94,116.89
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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.