Finding the Fourth Proportional to 122,833.90, 169,509.66 and 69,117.84
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Solution
The fourth proportional to 122,833.90, 169,509.66 and 69,117.84 is: 95,381.99
Step by Step Solution
- Step 1: Write the proportion equation
122,833.90 : 169,509.66 = 69,117.84 : x - Step 2: Convert to fraction form
122,833.90/169,509.66 = 69,117.84/x - Step 3: Cross multiply
122,833.90x = 169,509.66 × 69,117.84 - Step 4: Simplify right side
122,833.90x = 11,716,141,558.33 - Step 5: Solve for x
x = 11,716,141,558.33/122,833.90 - Step 6: Final answer
x = 95,381.99
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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.