Finding the Fourth Proportional to 122,368.41, 168,871.01 and 68,657.31
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Solution
The fourth proportional to 122,368.41, 168,871.01 and 68,657.31 is: 94,748.55
Step by Step Solution
- Step 1: Write the proportion equation
122,368.41 : 168,871.01 = 68,657.31 : x - Step 2: Convert to fraction form
122,368.41/168,871.01 = 68,657.31/x - Step 3: Cross multiply
122,368.41x = 168,871.01 × 68,657.31 - Step 4: Simplify right side
122,368.41x = 11,594,228,940.30 - Step 5: Solve for x
x = 11,594,228,940.30/122,368.41 - Step 6: Final answer
x = 94,748.55
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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.