Finding the Fourth Proportional to 122,779.95, 169,434.63 and 69,064.94
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Solution
The fourth proportional to 122,779.95, 169,434.63 and 69,064.94 is: 95,308.65
Step by Step Solution
- Step 1: Write the proportion equation
122,779.95 : 169,434.63 = 69,064.94 : x - Step 2: Convert to fraction form
122,779.95/169,434.63 = 69,064.94/x - Step 3: Cross multiply
122,779.95x = 169,434.63 × 69,064.94 - Step 4: Simplify right side
122,779.95x = 11,701,991,707.70 - Step 5: Solve for x
x = 11,701,991,707.70/122,779.95 - Step 6: Final answer
x = 95,308.65
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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.