Finding the Fourth Proportional to 122,785.13, 169,441.93 and 69,070.52
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Solution
The fourth proportional to 122,785.13, 169,441.93 and 69,070.52 is: 95,316.45
Step by Step Solution
- Step 1: Write the proportion equation
122,785.13 : 169,441.93 = 69,070.52 : x - Step 2: Convert to fraction form
122,785.13/169,441.93 = 69,070.52/x - Step 3: Cross multiply
122,785.13x = 169,441.93 × 69,070.52 - Step 4: Simplify right side
122,785.13x = 11,703,442,214.90 - Step 5: Solve for x
x = 11,703,442,214.90/122,785.13 - Step 6: Final answer
x = 95,316.45
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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.