Finding the Fourth Proportional to 126,966.84, 190,545.84 and 86,889.84
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Solution
The fourth proportional to 126,966.84, 190,545.84 and 86,889.84 is: 130,400.17
Step by Step Solution
- Step 1: Write the proportion equation
126,966.84 : 190,545.84 = 86,889.84 : x - Step 2: Convert to fraction form
126,966.84/190,545.84 = 86,889.84/x - Step 3: Cross multiply
126,966.84x = 190,545.84 × 86,889.84 - Step 4: Simplify right side
126,966.84x = 16,556,497,550.27 - Step 5: Solve for x
x = 16,556,497,550.27/126,966.84 - Step 6: Final answer
x = 130,400.17
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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.