Finding the Fourth Proportional to 122,960.79, 169,686.48 and 69,246.75
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Solution
The fourth proportional to 122,960.79, 169,686.48 and 69,246.75 is: 95,560.85
Step by Step Solution
- Step 1: Write the proportion equation
122,960.79 : 169,686.48 = 69,246.75 : x - Step 2: Convert to fraction form
122,960.79/169,686.48 = 69,246.75/x - Step 3: Cross multiply
122,960.79x = 169,686.48 × 69,246.75 - Step 4: Simplify right side
122,960.79x = 11,750,237,258.94 - Step 5: Solve for x
x = 11,750,237,258.94/122,960.79 - Step 6: Final answer
x = 95,560.85
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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.