Finding the Fourth Proportional to 122,543.08, 169,117.86 and 68,829.64
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Solution
The fourth proportional to 122,543.08, 169,117.86 and 68,829.64 is: 94,989.63
Step by Step Solution
- Step 1: Write the proportion equation
122,543.08 : 169,117.86 = 68,829.64 : x - Step 2: Convert to fraction form
122,543.08/169,117.86 = 68,829.64/x - Step 3: Cross multiply
122,543.08x = 169,117.86 × 68,829.64 - Step 4: Simplify right side
122,543.08x = 11,640,321,421.37 - Step 5: Solve for x
x = 11,640,321,421.37/122,543.08 - Step 6: Final answer
x = 94,989.63
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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.