Finding the Fourth Proportional to 143,151.08, 214,564.62 and 72,881.96
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Solution
The fourth proportional to 143,151.08, 214,564.62 and 72,881.96 is: 109,240.46
Step by Step Solution
- Step 1: Write the proportion equation
143,151.08 : 214,564.62 = 72,881.96 : x - Step 2: Convert to fraction form
143,151.08/214,564.62 = 72,881.96/x - Step 3: Cross multiply
143,151.08x = 214,564.62 × 72,881.96 - Step 4: Simplify right side
143,151.08x = 15,637,890,052.26 - Step 5: Solve for x
x = 15,637,890,052.26/143,151.08 - Step 6: Final answer
x = 109,240.46
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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.