Finding the Fourth Proportional to 165,102.60, 246,997.80 and 143,159.70
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Solution
The fourth proportional to 165,102.60, 246,997.80 and 143,159.70 is: 214,170.65
Step by Step Solution
- Step 1: Write the proportion equation
165,102.60 : 246,997.80 = 143,159.70 : x - Step 2: Convert to fraction form
165,102.60/246,997.80 = 143,159.70/x - Step 3: Cross multiply
165,102.60x = 246,997.80 × 143,159.70 - Step 4: Simplify right side
165,102.60x = 35,360,130,948.66 - Step 5: Solve for x
x = 35,360,130,948.66/165,102.60 - Step 6: Final answer
x = 214,170.65
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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.