Finding the Fourth Proportional to 124,659.10, 186,988.65 and 40,419.10
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Solution
The fourth proportional to 124,659.10, 186,988.65 and 40,419.10 is: 60,628.65
Step by Step Solution
- Step 1: Write the proportion equation
124,659.10 : 186,988.65 = 40,419.10 : x - Step 2: Convert to fraction form
124,659.10/186,988.65 = 40,419.10/x - Step 3: Cross multiply
124,659.10x = 186,988.65 × 40,419.10 - Step 4: Simplify right side
124,659.10x = 7,557,912,943.22 - Step 5: Solve for x
x = 7,557,912,943.22/124,659.10 - Step 6: Final answer
x = 60,628.65
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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.