Finding the Fourth Proportional to 134,427.11, 185,503.46 and 74,001.65
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Solution
The fourth proportional to 134,427.11, 185,503.46 and 74,001.65 is: 102,118.99
Step by Step Solution
- Step 1: Write the proportion equation
134,427.11 : 185,503.46 = 74,001.65 : x - Step 2: Convert to fraction form
134,427.11/185,503.46 = 74,001.65/x - Step 3: Cross multiply
134,427.11x = 185,503.46 × 74,001.65 - Step 4: Simplify right side
134,427.11x = 13,727,560,823.18 - Step 5: Solve for x
x = 13,727,560,823.18/134,427.11 - Step 6: Final answer
x = 102,118.99
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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.