Finding the Fourth Proportional to 122,366.91, 168,868.94 and 68,655.81
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Solution
The fourth proportional to 122,366.91, 168,868.94 and 68,655.81 is: 94,746.48
Step by Step Solution
- Step 1: Write the proportion equation
122,366.91 : 168,868.94 = 68,655.81 : x - Step 2: Convert to fraction form
122,366.91/168,868.94 = 68,655.81/x - Step 3: Cross multiply
122,366.91x = 168,868.94 × 68,655.81 - Step 4: Simplify right side
122,366.91x = 11,593,833,516.26 - Step 5: Solve for x
x = 11,593,833,516.26/122,366.91 - Step 6: Final answer
x = 94,746.48
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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.