Finding the Fourth Proportional to 143,008.66, 214,569.42 and 54,285.71
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Solution
The fourth proportional to 143,008.66, 214,569.42 and 54,285.71 is: 81,449.99
Step by Step Solution
- Step 1: Write the proportion equation
143,008.66 : 214,569.42 = 54,285.71 : x - Step 2: Convert to fraction form
143,008.66/214,569.42 = 54,285.71/x - Step 3: Cross multiply
143,008.66x = 214,569.42 × 54,285.71 - Step 4: Simplify right side
143,008.66x = 11,648,053,308.99 - Step 5: Solve for x
x = 11,648,053,308.99/143,008.66 - Step 6: Final answer
x = 81,449.99
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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.