Finding the Fourth Proportional to 121,941.24, 168,285.46 and 68,223.06
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Solution
The fourth proportional to 121,941.24, 168,285.46 and 68,223.06 is: 94,151.49
Step by Step Solution
- Step 1: Write the proportion equation
121,941.24 : 168,285.46 = 68,223.06 : x - Step 2: Convert to fraction form
121,941.24/168,285.46 = 68,223.06/x - Step 3: Cross multiply
121,941.24x = 168,285.46 × 68,223.06 - Step 4: Simplify right side
121,941.24x = 11,480,949,034.71 - Step 5: Solve for x
x = 11,480,949,034.71/121,941.24 - Step 6: Final answer
x = 94,151.49
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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.