Finding the Fourth Proportional to 102,811.01, 141,878.39 and 57,489.08
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Solution
The fourth proportional to 102,811.01, 141,878.39 and 57,489.08 is: 79,334.48
Step by Step Solution
- Step 1: Write the proportion equation
102,811.01 : 141,878.39 = 57,489.08 : x - Step 2: Convert to fraction form
102,811.01/141,878.39 = 57,489.08/x - Step 3: Cross multiply
102,811.01x = 141,878.39 × 57,489.08 - Step 4: Simplify right side
102,811.01x = 8,156,457,116.14 - Step 5: Solve for x
x = 8,156,457,116.14/102,811.01 - Step 6: Final answer
x = 79,334.48
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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.