Finding the Fourth Proportional to 124,390.64, 186,615.12 and 49,515.36
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Solution
The fourth proportional to 124,390.64, 186,615.12 and 49,515.36 is: 74,284.65
Step by Step Solution
- Step 1: Write the proportion equation
124,390.64 : 186,615.12 = 49,515.36 : x - Step 2: Convert to fraction form
124,390.64/186,615.12 = 49,515.36/x - Step 3: Cross multiply
124,390.64x = 186,615.12 × 49,515.36 - Step 4: Simplify right side
124,390.64x = 9,240,314,848.24 - Step 5: Solve for x
x = 9,240,314,848.24/124,390.64 - Step 6: Final answer
x = 74,284.65
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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.