Finding the Fourth Proportional to 139,926.64, 209,951.91 and 73,350.94
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Solution
The fourth proportional to 139,926.64, 209,951.91 and 73,350.94 is: 110,058.88
Step by Step Solution
- Step 1: Write the proportion equation
139,926.64 : 209,951.91 = 73,350.94 : x - Step 2: Convert to fraction form
139,926.64/209,951.91 = 73,350.94/x - Step 3: Cross multiply
139,926.64x = 209,951.91 × 73,350.94 - Step 4: Simplify right side
139,926.64x = 15,400,169,953.30 - Step 5: Solve for x
x = 15,400,169,953.30/139,926.64 - Step 6: Final answer
x = 110,058.88
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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.