Finding the Fourth Proportional to 99,723.20, 137,338.08 and 97,545.92
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Solution
The fourth proportional to 99,723.20, 137,338.08 and 97,545.92 is: 134,339.55
Step by Step Solution
- Step 1: Write the proportion equation
99,723.20 : 137,338.08 = 97,545.92 : x - Step 2: Convert to fraction form
99,723.20/137,338.08 = 97,545.92/x - Step 3: Cross multiply
99,723.20x = 137,338.08 × 97,545.92 - Step 4: Simplify right side
99,723.20x = 13,396,769,364.63 - Step 5: Solve for x
x = 13,396,769,364.63/99,723.20 - Step 6: Final answer
x = 134,339.55
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1.5x scale
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.