Finding the Fourth Proportional to 121,595.58, 167,878.80 and 83,419.02
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Solution
The fourth proportional to 121,595.58, 167,878.80 and 83,419.02 is: 115,171.00
Step by Step Solution
- Step 1: Write the proportion equation
121,595.58 : 167,878.80 = 83,419.02 : x - Step 2: Convert to fraction form
121,595.58/167,878.80 = 83,419.02/x - Step 3: Cross multiply
121,595.58x = 167,878.80 × 83,419.02 - Step 4: Simplify right side
121,595.58x = 14,004,284,974.78 - Step 5: Solve for x
x = 14,004,284,974.78/121,595.58 - Step 6: Final answer
x = 115,171.00
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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.