Finding the Fourth Proportional to 156,975.10, 235,457.40 and 68,228.62
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Solution
The fourth proportional to 156,975.10, 235,457.40 and 68,228.62 is: 102,340.65
Step by Step Solution
- Step 1: Write the proportion equation
156,975.10 : 235,457.40 = 68,228.62 : x - Step 2: Convert to fraction form
156,975.10/235,457.40 = 68,228.62/x - Step 3: Cross multiply
156,975.10x = 235,457.40 × 68,228.62 - Step 4: Simplify right side
156,975.10x = 16,064,933,470.79 - Step 5: Solve for x
x = 16,064,933,470.79/156,975.10 - Step 6: Final answer
x = 102,340.65
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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.