Finding the Fourth Proportional to 133,040.19, 183,795.41 and 87,208.64
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Solution
The fourth proportional to 133,040.19, 183,795.41 and 87,208.64 is: 120,478.99
Step by Step Solution
- Step 1: Write the proportion equation
133,040.19 : 183,795.41 = 87,208.64 : x - Step 2: Convert to fraction form
133,040.19/183,795.41 = 87,208.64/x - Step 3: Cross multiply
133,040.19x = 183,795.41 × 87,208.64 - Step 4: Simplify right side
133,040.19x = 16,028,547,744.34 - Step 5: Solve for x
x = 16,028,547,744.34/133,040.19 - Step 6: Final answer
x = 120,478.99
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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.