Finding the Fourth Proportional to 122,832.59, 169,510.55 and 69,117.71
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Solution
The fourth proportional to 122,832.59, 169,510.55 and 69,117.71 is: 95,383.32
Step by Step Solution
- Step 1: Write the proportion equation
122,832.59 : 169,510.55 = 69,117.71 : x - Step 2: Convert to fraction form
122,832.59/169,510.55 = 69,117.71/x - Step 3: Cross multiply
122,832.59x = 169,510.55 × 69,117.71 - Step 4: Simplify right side
122,832.59x = 11,716,179,843.70 - Step 5: Solve for x
x = 11,716,179,843.70/122,832.59 - Step 6: Final answer
x = 95,383.32
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1.5x scale
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.