Finding the Fourth Proportional to 143,284.04, 214,842.68 and 105,355.99
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Solution
The fourth proportional to 143,284.04, 214,842.68 and 105,355.99 is: 157,972.68
Step by Step Solution
- Step 1: Write the proportion equation
143,284.04 : 214,842.68 = 105,355.99 : x - Step 2: Convert to fraction form
143,284.04/214,842.68 = 105,355.99/x - Step 3: Cross multiply
143,284.04x = 214,842.68 × 105,355.99 - Step 4: Simplify right side
143,284.04x = 22,634,963,382.51 - Step 5: Solve for x
x = 22,634,963,382.51/143,284.04 - Step 6: Final answer
x = 157,972.68
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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.