Finding the Fourth Proportional to 143,135.80, 214,703.70 and 125,639.80
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Solution
The fourth proportional to 143,135.80, 214,703.70 and 125,639.80 is: 188,459.70
Step by Step Solution
- Step 1: Write the proportion equation
143,135.80 : 214,703.70 = 125,639.80 : x - Step 2: Convert to fraction form
143,135.80/214,703.70 = 125,639.80/x - Step 3: Cross multiply
143,135.80x = 214,703.70 × 125,639.80 - Step 4: Simplify right side
143,135.80x = 26,975,329,927.26 - Step 5: Solve for x
x = 26,975,329,927.26/143,135.80 - Step 6: Final answer
x = 188,459.70
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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.