Finding the Fourth Proportional to 124,643.40, 186,965.10 and 110,865.30
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Solution
The fourth proportional to 124,643.40, 186,965.10 and 110,865.30 is: 166,297.95
Step by Step Solution
- Step 1: Write the proportion equation
124,643.40 : 186,965.10 = 110,865.30 : x - Step 2: Convert to fraction form
124,643.40/186,965.10 = 110,865.30/x - Step 3: Cross multiply
124,643.40x = 186,965.10 × 110,865.30 - Step 4: Simplify right side
124,643.40x = 20,727,941,901.03 - Step 5: Solve for x
x = 20,727,941,901.03/124,643.40 - Step 6: Final answer
x = 166,297.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.