Finding the Fourth Proportional to 122,768.18, 169,420.13 and 69,053.23
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Solution
The fourth proportional to 122,768.18, 169,420.13 and 69,053.23 is: 95,293.49
Step by Step Solution
- Step 1: Write the proportion equation
122,768.18 : 169,420.13 = 69,053.23 : x - Step 2: Convert to fraction form
122,768.18/169,420.13 = 69,053.23/x - Step 3: Cross multiply
122,768.18x = 169,420.13 × 69,053.23 - Step 4: Simplify right side
122,768.18x = 11,699,007,999.68 - Step 5: Solve for x
x = 11,699,007,999.68/122,768.18 - Step 6: Final answer
x = 95,293.49
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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.