Finding the Fourth Proportional to 121,937.79, 168,271.18 and 68,227.91
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Solution
The fourth proportional to 121,937.79, 168,271.18 and 68,227.91 is: 94,152.85
Step by Step Solution
- Step 1: Write the proportion equation
121,937.79 : 168,271.18 = 68,227.91 : x - Step 2: Convert to fraction form
121,937.79/168,271.18 = 68,227.91/x - Step 3: Cross multiply
121,937.79x = 168,271.18 × 68,227.91 - Step 4: Simplify right side
121,937.79x = 11,480,790,924.63 - Step 5: Solve for x
x = 11,480,790,924.63/121,937.79 - Step 6: Final answer
x = 94,152.85
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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.