Finding the Fourth Proportional to 121,919.04, 168,248.53 and 68,204.96
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Solution
The fourth proportional to 121,919.04, 168,248.53 and 68,204.96 is: 94,122.99
Step by Step Solution
- Step 1: Write the proportion equation
121,919.04 : 168,248.53 = 68,204.96 : x - Step 2: Convert to fraction form
121,919.04/168,248.53 = 68,204.96/x - Step 3: Cross multiply
121,919.04x = 168,248.53 × 68,204.96 - Step 4: Simplify right side
121,919.04x = 11,475,384,258.71 - Step 5: Solve for x
x = 11,475,384,258.71/121,919.04 - Step 6: Final answer
x = 94,122.99
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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.