Finding the Fourth Proportional to 106,320.25, 159,547.12 and 43,140.62
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Solution
The fourth proportional to 106,320.25, 159,547.12 and 43,140.62 is: 64,738.02
Step by Step Solution
- Step 1: Write the proportion equation
106,320.25 : 159,547.12 = 43,140.62 : x - Step 2: Convert to fraction form
106,320.25/159,547.12 = 43,140.62/x - Step 3: Cross multiply
106,320.25x = 159,547.12 × 43,140.62 - Step 4: Simplify right side
106,320.25x = 6,882,961,676.01 - Step 5: Solve for x
x = 6,882,961,676.01/106,320.25 - Step 6: Final answer
x = 64,738.02
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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.