Finding the Fourth Proportional to 134,641.26, 185,803.90 and 74,212.02
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Solution
The fourth proportional to 134,641.26, 185,803.90 and 74,212.02 is: 102,412.02
Step by Step Solution
- Step 1: Write the proportion equation
134,641.26 : 185,803.90 = 74,212.02 : x - Step 2: Convert to fraction form
134,641.26/185,803.90 = 74,212.02/x - Step 3: Cross multiply
134,641.26x = 185,803.90 × 74,212.02 - Step 4: Simplify right side
134,641.26x = 13,788,882,742.88 - Step 5: Solve for x
x = 13,788,882,742.88/134,641.26 - Step 6: Final answer
x = 102,412.02
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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.