Finding the Fourth Proportional to 124,478.10, 171,779.87 and 67,889.48
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Solution
The fourth proportional to 124,478.10, 171,779.87 and 67,889.48 is: 93,687.53
Step by Step Solution
- Step 1: Write the proportion equation
124,478.10 : 171,779.87 = 67,889.48 : x - Step 2: Convert to fraction form
124,478.10/171,779.87 = 67,889.48/x - Step 3: Cross multiply
124,478.10x = 171,779.87 × 67,889.48 - Step 4: Simplify right side
124,478.10x = 11,662,045,359.59 - Step 5: Solve for x
x = 11,662,045,359.59/124,478.10 - Step 6: Final answer
x = 93,687.53
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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.