Finding the Fourth Proportional to 143,291.68, 214,733.84 and 105,555.00
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Solution
The fourth proportional to 143,291.68, 214,733.84 and 105,555.00 is: 158,182.45
Step by Step Solution
- Step 1: Write the proportion equation
143,291.68 : 214,733.84 = 105,555.00 : x - Step 2: Convert to fraction form
143,291.68/214,733.84 = 105,555.00/x - Step 3: Cross multiply
143,291.68x = 214,733.84 × 105,555.00 - Step 4: Simplify right side
143,291.68x = 22,666,229,550.80 - Step 5: Solve for x
x = 22,666,229,550.80/143,291.68 - Step 6: Final answer
x = 158,182.45
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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.