Finding the Fourth Proportional to 103,376.99, 142,663.68 and 58,062.95
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Solution
The fourth proportional to 103,376.99, 142,663.68 and 58,062.95 is: 80,128.81
Step by Step Solution
- Step 1: Write the proportion equation
103,376.99 : 142,663.68 = 58,062.95 : x - Step 2: Convert to fraction form
103,376.99/142,663.68 = 58,062.95/x - Step 3: Cross multiply
103,376.99x = 142,663.68 × 58,062.95 - Step 4: Simplify right side
103,376.99x = 8,283,474,475.32 - Step 5: Solve for x
x = 8,283,474,475.32/103,376.99 - Step 6: Final answer
x = 80,128.81
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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.