Finding the Fourth Proportional to 199,139.07, 298,763.94 and 86,829.09
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Solution
The fourth proportional to 199,139.07, 298,763.94 and 86,829.09 is: 130,267.76
Step by Step Solution
- Step 1: Write the proportion equation
199,139.07 : 298,763.94 = 86,829.09 : x - Step 2: Convert to fraction form
199,139.07/298,763.94 = 86,829.09/x - Step 3: Cross multiply
199,139.07x = 298,763.94 × 86,829.09 - Step 4: Simplify right side
199,139.07x = 25,941,401,035.01 - Step 5: Solve for x
x = 25,941,401,035.01/199,139.07 - Step 6: Final answer
x = 130,267.76
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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.