Finding the Fourth Proportional to 102,029.61, 153,044.21 and 27,149.75
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Solution
The fourth proportional to 102,029.61, 153,044.21 and 27,149.75 is: 40,724.57
Step by Step Solution
- Step 1: Write the proportion equation
102,029.61 : 153,044.21 = 27,149.75 : x - Step 2: Convert to fraction form
102,029.61/153,044.21 = 27,149.75/x - Step 3: Cross multiply
102,029.61x = 153,044.21 × 27,149.75 - Step 4: Simplify right side
102,029.61x = 4,155,111,904.70 - Step 5: Solve for x
x = 4,155,111,904.70/102,029.61 - Step 6: Final answer
x = 40,724.57
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.