Finding the Fourth Proportional to 121,409.70, 182,114.55 and 38,303.70
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Solution
The fourth proportional to 121,409.70, 182,114.55 and 38,303.70 is: 57,455.55
Step by Step Solution
- Step 1: Write the proportion equation
121,409.70 : 182,114.55 = 38,303.70 : x - Step 2: Convert to fraction form
121,409.70/182,114.55 = 38,303.70/x - Step 3: Cross multiply
121,409.70x = 182,114.55 × 38,303.70 - Step 4: Simplify right side
121,409.70x = 6,975,661,088.84 - Step 5: Solve for x
x = 6,975,661,088.84/121,409.70 - Step 6: Final answer
x = 57,455.55
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1.5x scale
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.