Finding the Fourth Proportional to 139,511.19, 208,319.26 and 135,727.79
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Solution
The fourth proportional to 139,511.19, 208,319.26 and 135,727.79 is: 202,669.86
Step by Step Solution
- Step 1: Write the proportion equation
139,511.19 : 208,319.26 = 135,727.79 : x - Step 2: Convert to fraction form
139,511.19/208,319.26 = 135,727.79/x - Step 3: Cross multiply
139,511.19x = 208,319.26 × 135,727.79 - Step 4: Simplify right side
139,511.19x = 28,274,712,774.24 - Step 5: Solve for x
x = 28,274,712,774.24/139,511.19 - Step 6: Final answer
x = 202,669.86
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.