Finding the Fourth Proportional to 108,653.67, 162,947.36 and 75,135.17
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Solution
The fourth proportional to 108,653.67, 162,947.36 and 75,135.17 is: 112,679.82
Step by Step Solution
- Step 1: Write the proportion equation
108,653.67 : 162,947.36 = 75,135.17 : x - Step 2: Convert to fraction form
108,653.67/162,947.36 = 75,135.17/x - Step 3: Cross multiply
108,653.67x = 162,947.36 × 75,135.17 - Step 4: Simplify right side
108,653.67x = 12,243,076,404.24 - Step 5: Solve for x
x = 12,243,076,404.24/108,653.67 - Step 6: Final answer
x = 112,679.82
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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.