Finding the Fourth Proportional to 150,063.69, 207,094.53 and 86,421.99
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Solution
The fourth proportional to 150,063.69, 207,094.53 and 86,421.99 is: 119,266.17
Step by Step Solution
- Step 1: Write the proportion equation
150,063.69 : 207,094.53 = 86,421.99 : x - Step 2: Convert to fraction form
150,063.69/207,094.53 = 86,421.99/x - Step 3: Cross multiply
150,063.69x = 207,094.53 × 86,421.99 - Step 4: Simplify right side
150,063.69x = 17,897,521,400.71 - Step 5: Solve for x
x = 17,897,521,400.71/150,063.69 - Step 6: Final answer
x = 119,266.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.