Finding the Fourth Proportional to 121,959.41, 182,833.97 and 47,132.06
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Solution
The fourth proportional to 121,959.41, 182,833.97 and 47,132.06 is: 70,657.45
Step by Step Solution
- Step 1: Write the proportion equation
121,959.41 : 182,833.97 = 47,132.06 : x - Step 2: Convert to fraction form
121,959.41/182,833.97 = 47,132.06/x - Step 3: Cross multiply
121,959.41x = 182,833.97 × 47,132.06 - Step 4: Simplify right side
121,959.41x = 8,617,340,494.25 - Step 5: Solve for x
x = 8,617,340,494.25/121,959.41 - Step 6: Final answer
x = 70,657.45
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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.