Finding the Fourth Proportional to 102,966.96, 142,129.44 and 60,538.08
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Solution
The fourth proportional to 102,966.96, 142,129.44 and 60,538.08 is: 83,563.15
Step by Step Solution
- Step 1: Write the proportion equation
102,966.96 : 142,129.44 = 60,538.08 : x - Step 2: Convert to fraction form
102,966.96/142,129.44 = 60,538.08/x - Step 3: Cross multiply
102,966.96x = 142,129.44 × 60,538.08 - Step 4: Simplify right side
102,966.96x = 8,604,243,409.08 - Step 5: Solve for x
x = 8,604,243,409.08/102,966.96 - Step 6: Final answer
x = 83,563.15
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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.