Finding the Fourth Proportional to 121,671.38, 167,904.71 and 67,957.14
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Solution
The fourth proportional to 121,671.38, 167,904.71 and 67,957.14 is: 93,779.85
Step by Step Solution
- Step 1: Write the proportion equation
121,671.38 : 167,904.71 = 67,957.14 : x - Step 2: Convert to fraction form
121,671.38/167,904.71 = 67,957.14/x - Step 3: Cross multiply
121,671.38x = 167,904.71 × 67,957.14 - Step 4: Simplify right side
121,671.38x = 11,410,323,884.13 - Step 5: Solve for x
x = 11,410,323,884.13/121,671.38 - Step 6: Final answer
x = 93,779.85
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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.