Finding the Fourth Proportional to 125,874.90, 188,812.35 and 69,887.70
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Solution
The fourth proportional to 125,874.90, 188,812.35 and 69,887.70 is: 104,831.55
Step by Step Solution
- Step 1: Write the proportion equation
125,874.90 : 188,812.35 = 69,887.70 : x - Step 2: Convert to fraction form
125,874.90/188,812.35 = 69,887.70/x - Step 3: Cross multiply
125,874.90x = 188,812.35 × 69,887.70 - Step 4: Simplify right side
125,874.90x = 13,195,660,873.10 - Step 5: Solve for x
x = 13,195,660,873.10/125,874.90 - Step 6: Final answer
x = 104,831.55
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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.