Finding the Fourth Proportional to 127,700.16, 176,228.10 and 73,989.06
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Solution
The fourth proportional to 127,700.16, 176,228.10 and 73,989.06 is: 102,105.99
Step by Step Solution
- Step 1: Write the proportion equation
127,700.16 : 176,228.10 = 73,989.06 : x - Step 2: Convert to fraction form
127,700.16/176,228.10 = 73,989.06/x - Step 3: Cross multiply
127,700.16x = 176,228.10 × 73,989.06 - Step 4: Simplify right side
127,700.16x = 13,038,951,464.59 - Step 5: Solve for x
x = 13,038,951,464.59/127,700.16 - Step 6: Final answer
x = 102,105.99
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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.