Finding the Fourth Proportional to 139,275.46, 192,202.26 and 75,613.26
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Solution
The fourth proportional to 139,275.46, 192,202.26 and 75,613.26 is: 104,347.45
Step by Step Solution
- Step 1: Write the proportion equation
139,275.46 : 192,202.26 = 75,613.26 : x - Step 2: Convert to fraction form
139,275.46/192,202.26 = 75,613.26/x - Step 3: Cross multiply
139,275.46x = 192,202.26 × 75,613.26 - Step 4: Simplify right side
139,275.46x = 14,533,039,895.18 - Step 5: Solve for x
x = 14,533,039,895.18/139,275.46 - Step 6: Final answer
x = 104,347.45
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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.