Finding the Fourth Proportional to 126,352.12, 174,364.80 and 69,762.28
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Solution
The fourth proportional to 126,352.12, 174,364.80 and 69,762.28 is: 96,271.32
Step by Step Solution
- Step 1: Write the proportion equation
126,352.12 : 174,364.80 = 69,762.28 : x - Step 2: Convert to fraction form
126,352.12/174,364.80 = 69,762.28/x - Step 3: Cross multiply
126,352.12x = 174,364.80 × 69,762.28 - Step 4: Simplify right side
126,352.12x = 12,164,085,999.74 - Step 5: Solve for x
x = 12,164,085,999.74/126,352.12 - Step 6: Final answer
x = 96,271.32
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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.