Finding the Fourth Proportional to 101,217.87, 139,549.64 and 69,329.79
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Solution
The fourth proportional to 101,217.87, 139,549.64 and 69,329.79 is: 95,585.36
Step by Step Solution
- Step 1: Write the proportion equation
101,217.87 : 139,549.64 = 69,329.79 : x - Step 2: Convert to fraction form
101,217.87/139,549.64 = 69,329.79/x - Step 3: Cross multiply
101,217.87x = 139,549.64 × 69,329.79 - Step 4: Simplify right side
101,217.87x = 9,674,946,889.13 - Step 5: Solve for x
x = 9,674,946,889.13/101,217.87 - Step 6: Final answer
x = 95,585.36
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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.