Finding the Fourth Proportional to 128,190.24, 176,801.67 and 119,595.94
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Solution
The fourth proportional to 128,190.24, 176,801.67 and 119,595.94 is: 164,948.29
Step by Step Solution
- Step 1: Write the proportion equation
128,190.24 : 176,801.67 = 119,595.94 : x - Step 2: Convert to fraction form
128,190.24/176,801.67 = 119,595.94/x - Step 3: Cross multiply
128,190.24x = 176,801.67 × 119,595.94 - Step 4: Simplify right side
128,190.24x = 21,144,761,475.22 - Step 5: Solve for x
x = 21,144,761,475.22/128,190.24 - Step 6: Final answer
x = 164,948.29
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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.