Finding the Fourth Proportional to 121,848.20, 168,192.86 and 83,733.95
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Solution
The fourth proportional to 121,848.20, 168,192.86 and 83,733.95 is: 115,581.95
Step by Step Solution
- Step 1: Write the proportion equation
121,848.20 : 168,192.86 = 83,733.95 : x - Step 2: Convert to fraction form
121,848.20/168,192.86 = 83,733.95/x - Step 3: Cross multiply
121,848.20x = 168,192.86 × 83,733.95 - Step 4: Simplify right side
121,848.20x = 14,083,452,531.41 - Step 5: Solve for x
x = 14,083,452,531.41/121,848.20 - Step 6: Final answer
x = 115,581.95
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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.