Finding the Fourth Proportional to 143,338.24, 197,149.17 and 114,981.76
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Solution
The fourth proportional to 143,338.24, 197,149.17 and 114,981.76 is: 158,147.32
Step by Step Solution
- Step 1: Write the proportion equation
143,338.24 : 197,149.17 = 114,981.76 : x - Step 2: Convert to fraction form
143,338.24/197,149.17 = 114,981.76/x - Step 3: Cross multiply
143,338.24x = 197,149.17 × 114,981.76 - Step 4: Simplify right side
143,338.24x = 22,668,558,549.14 - Step 5: Solve for x
x = 22,668,558,549.14/143,338.24 - Step 6: Final answer
x = 158,147.32
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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.