Finding the Fourth Proportional to 143,135.40, 214,703.10 and 103,477.80
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Solution
The fourth proportional to 143,135.40, 214,703.10 and 103,477.80 is: 155,216.70
Step by Step Solution
- Step 1: Write the proportion equation
143,135.40 : 214,703.10 = 103,477.80 : x - Step 2: Convert to fraction form
143,135.40/214,703.10 = 103,477.80/x - Step 3: Cross multiply
143,135.40x = 214,703.10 × 103,477.80 - Step 4: Simplify right side
143,135.40x = 22,217,004,441.18 - Step 5: Solve for x
x = 22,217,004,441.18/143,135.40 - Step 6: Final answer
x = 155,216.70
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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.