Finding the Fourth Proportional to 103,193.68, 142,432.68 and 62,929.66
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Solution
The fourth proportional to 103,193.68, 142,432.68 and 62,929.66 is: 86,858.42
Step by Step Solution
- Step 1: Write the proportion equation
103,193.68 : 142,432.68 = 62,929.66 : x - Step 2: Convert to fraction form
103,193.68/142,432.68 = 62,929.66/x - Step 3: Cross multiply
103,193.68x = 142,432.68 × 62,929.66 - Step 4: Simplify right side
103,193.68x = 8,963,240,125.29 - Step 5: Solve for x
x = 8,963,240,125.29/103,193.68 - Step 6: Final answer
x = 86,858.42
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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.