Finding the Fourth Proportional to 143,135.70, 214,703.55 and 44,639.70
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Solution
The fourth proportional to 143,135.70, 214,703.55 and 44,639.70 is: 66,959.55
Step by Step Solution
- Step 1: Write the proportion equation
143,135.70 : 214,703.55 = 44,639.70 : x - Step 2: Convert to fraction form
143,135.70/214,703.55 = 44,639.70/x - Step 3: Cross multiply
143,135.70x = 214,703.55 × 44,639.70 - Step 4: Simplify right side
143,135.70x = 9,584,302,060.94 - Step 5: Solve for x
x = 9,584,302,060.94/143,135.70 - Step 6: Final answer
x = 66,959.55
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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.