Finding the Fourth Proportional to 118,128.08, 163,010.84 and 67,134.08
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Solution
The fourth proportional to 118,128.08, 163,010.84 and 67,134.08 is: 92,641.67
Step by Step Solution
- Step 1: Write the proportion equation
118,128.08 : 163,010.84 = 67,134.08 : x - Step 2: Convert to fraction form
118,128.08/163,010.84 = 67,134.08/x - Step 3: Cross multiply
118,128.08x = 163,010.84 × 67,134.08 - Step 4: Simplify right side
118,128.08x = 10,943,582,773.43 - Step 5: Solve for x
x = 10,943,582,773.43/118,128.08 - Step 6: Final answer
x = 92,641.67
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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.