Finding the Fourth Proportional to 154,931.26, 213,750.36 and 101,247.40
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Solution
The fourth proportional to 154,931.26, 213,750.36 and 101,247.40 is: 139,685.61
Step by Step Solution
- Step 1: Write the proportion equation
154,931.26 : 213,750.36 = 101,247.40 : x - Step 2: Convert to fraction form
154,931.26/213,750.36 = 101,247.40/x - Step 3: Cross multiply
154,931.26x = 213,750.36 × 101,247.40 - Step 4: Simplify right side
154,931.26x = 21,641,668,199.06 - Step 5: Solve for x
x = 21,641,668,199.06/154,931.26 - Step 6: Final answer
x = 139,685.61
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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.