Finding the Fourth Proportional to 156,988.94, 235,478.14 and 68,242.44
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Solution
The fourth proportional to 156,988.94, 235,478.14 and 68,242.44 is: 102,361.37
Step by Step Solution
- Step 1: Write the proportion equation
156,988.94 : 235,478.14 = 68,242.44 : x - Step 2: Convert to fraction form
156,988.94/235,478.14 = 68,242.44/x - Step 3: Cross multiply
156,988.94x = 235,478.14 × 68,242.44 - Step 4: Simplify right side
156,988.94x = 16,069,602,840.26 - Step 5: Solve for x
x = 16,069,602,840.26/156,988.94 - Step 6: Final answer
x = 102,361.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.