Finding the Fourth Proportional to 122,656.64, 169,270.95 and 68,941.49
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Solution
The fourth proportional to 122,656.64, 169,270.95 and 68,941.49 is: 95,141.95
Step by Step Solution
- Step 1: Write the proportion equation
122,656.64 : 169,270.95 = 68,941.49 : x - Step 2: Convert to fraction form
122,656.64/169,270.95 = 68,941.49/x - Step 3: Cross multiply
122,656.64x = 169,270.95 × 68,941.49 - Step 4: Simplify right side
122,656.64x = 11,669,791,506.72 - Step 5: Solve for x
x = 11,669,791,506.72/122,656.64 - Step 6: Final answer
x = 95,141.95
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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.