Finding the Fourth Proportional to 134,443.80, 185,525.64 and 74,016.99
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Solution
The fourth proportional to 134,443.80, 185,525.64 and 74,016.99 is: 102,139.70
Step by Step Solution
- Step 1: Write the proportion equation
134,443.80 : 185,525.64 = 74,016.99 : x - Step 2: Convert to fraction form
134,443.80/185,525.64 = 74,016.99/x - Step 3: Cross multiply
134,443.80x = 185,525.64 × 74,016.99 - Step 4: Simplify right side
134,443.80x = 13,732,049,440.62 - Step 5: Solve for x
x = 13,732,049,440.62/134,443.80 - Step 6: Final answer
x = 102,139.70
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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.