Finding the Fourth Proportional to 156,903.19, 235,420.41 and 68,231.29
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Solution
The fourth proportional to 156,903.19, 235,420.41 and 68,231.29 is: 102,375.47
Step by Step Solution
- Step 1: Write the proportion equation
156,903.19 : 235,420.41 = 68,231.29 : x - Step 2: Convert to fraction form
156,903.19/235,420.41 = 68,231.29/x - Step 3: Cross multiply
156,903.19x = 235,420.41 × 68,231.29 - Step 4: Simplify right side
156,903.19x = 16,063,038,266.63 - Step 5: Solve for x
x = 16,063,038,266.63/156,903.19 - Step 6: Final answer
x = 102,375.47
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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.