Finding the Fourth Proportional to 134,868.99, 186,119.01 and 74,439.75
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Solution
The fourth proportional to 134,868.99, 186,119.01 and 74,439.75 is: 102,726.75
Step by Step Solution
- Step 1: Write the proportion equation
134,868.99 : 186,119.01 = 74,439.75 : x - Step 2: Convert to fraction form
134,868.99/186,119.01 = 74,439.75/x - Step 3: Cross multiply
134,868.99x = 186,119.01 × 74,439.75 - Step 4: Simplify right side
134,868.99x = 13,854,652,574.65 - Step 5: Solve for x
x = 13,854,652,574.65/134,868.99 - Step 6: Final answer
x = 102,726.75
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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.