Finding the Fourth Proportional to 127,800.64, 176,364.09 and 69,657.31
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Solution
The fourth proportional to 127,800.64, 176,364.09 and 69,657.31 is: 96,126.66
Step by Step Solution
- Step 1: Write the proportion equation
127,800.64 : 176,364.09 = 69,657.31 : x - Step 2: Convert to fraction form
127,800.64/176,364.09 = 69,657.31/x - Step 3: Cross multiply
127,800.64x = 176,364.09 × 69,657.31 - Step 4: Simplify right side
127,800.64x = 12,285,048,090.00 - Step 5: Solve for x
x = 12,285,048,090.00/127,800.64 - Step 6: Final answer
x = 96,126.66
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1.5x scale
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.