Finding the Fourth Proportional to 168,009.39, 251,926.58 and 79,239.06
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Solution
The fourth proportional to 168,009.39, 251,926.58 and 79,239.06 is: 118,817.32
Step by Step Solution
- Step 1: Write the proportion equation
168,009.39 : 251,926.58 = 79,239.06 : x - Step 2: Convert to fraction form
168,009.39/251,926.58 = 79,239.06/x - Step 3: Cross multiply
168,009.39x = 251,926.58 × 79,239.06 - Step 4: Simplify right side
168,009.39x = 19,962,425,388.21 - Step 5: Solve for x
x = 19,962,425,388.21/168,009.39 - Step 6: Final answer
x = 118,817.32
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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.