Finding the Fourth Proportional to 106,189.84, 159,284.76 and 39,627.28
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Solution
The fourth proportional to 106,189.84, 159,284.76 and 39,627.28 is: 59,440.92
Step by Step Solution
- Step 1: Write the proportion equation
106,189.84 : 159,284.76 = 39,627.28 : x - Step 2: Convert to fraction form
106,189.84/159,284.76 = 39,627.28/x - Step 3: Cross multiply
106,189.84x = 159,284.76 × 39,627.28 - Step 4: Simplify right side
106,189.84x = 6,312,021,784.25 - Step 5: Solve for x
x = 6,312,021,784.25/106,189.84 - Step 6: Final answer
x = 59,440.92
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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.