Finding the Fourth Proportional to 124,729.98, 186,964.29 and 58,115.18
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Solution
The fourth proportional to 124,729.98, 186,964.29 and 58,115.18 is: 87,111.88
Step by Step Solution
- Step 1: Write the proportion equation
124,729.98 : 186,964.29 = 58,115.18 : x - Step 2: Convert to fraction form
124,729.98/186,964.29 = 58,115.18/x - Step 3: Cross multiply
124,729.98x = 186,964.29 × 58,115.18 - Step 4: Simplify right side
124,729.98x = 10,865,462,432.10 - Step 5: Solve for x
x = 10,865,462,432.10/124,729.98 - Step 6: Final answer
x = 87,111.88
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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.