Finding the Fourth Proportional to 106,386.96, 159,584.49 and 39,820.08
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Solution
The fourth proportional to 106,386.96, 159,584.49 and 39,820.08 is: 59,731.64
Step by Step Solution
- Step 1: Write the proportion equation
106,386.96 : 159,584.49 = 39,820.08 : x - Step 2: Convert to fraction form
106,386.96/159,584.49 = 39,820.08/x - Step 3: Cross multiply
106,386.96x = 159,584.49 × 39,820.08 - Step 4: Simplify right side
106,386.96x = 6,354,667,158.56 - Step 5: Solve for x
x = 6,354,667,158.56/106,386.96 - Step 6: Final answer
x = 59,731.64
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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.