Finding the Fourth Proportional to 136,228.14, 187,758.63 and 128,354.94
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Solution
The fourth proportional to 136,228.14, 187,758.63 and 128,354.94 is: 176,907.27
Step by Step Solution
- Step 1: Write the proportion equation
136,228.14 : 187,758.63 = 128,354.94 : x - Step 2: Convert to fraction form
136,228.14/187,758.63 = 128,354.94/x - Step 3: Cross multiply
136,228.14x = 187,758.63 × 128,354.94 - Step 4: Simplify right side
136,228.14x = 24,099,747,688.13 - Step 5: Solve for x
x = 24,099,747,688.13/136,228.14 - Step 6: Final answer
x = 176,907.27
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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.