Finding the Fourth Proportional to 129,143.13, 193,719.02 and 44,904.02
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Solution
The fourth proportional to 129,143.13, 193,719.02 and 44,904.02 is: 67,357.53
Step by Step Solution
- Step 1: Write the proportion equation
129,143.13 : 193,719.02 = 44,904.02 : x - Step 2: Convert to fraction form
129,143.13/193,719.02 = 44,904.02/x - Step 3: Cross multiply
129,143.13x = 193,719.02 × 44,904.02 - Step 4: Simplify right side
129,143.13x = 8,698,762,039.64 - Step 5: Solve for x
x = 8,698,762,039.64/129,143.13 - Step 6: Final answer
x = 67,357.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.