Finding the Fourth Proportional to 134,896.11, 186,155.58 and 74,466.81
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Solution
The fourth proportional to 134,896.11, 186,155.58 and 74,466.81 is: 102,763.62
Step by Step Solution
- Step 1: Write the proportion equation
134,896.11 : 186,155.58 = 74,466.81 : x - Step 2: Convert to fraction form
134,896.11/186,155.58 = 74,466.81/x - Step 3: Cross multiply
134,896.11x = 186,155.58 × 74,466.81 - Step 4: Simplify right side
134,896.11x = 13,862,412,206.30 - Step 5: Solve for x
x = 13,862,412,206.30/134,896.11 - Step 6: Final answer
x = 102,763.62
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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.