Finding the Fourth Proportional to 122,494.36, 169,037.94 and 74,827.48
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Solution
The fourth proportional to 122,494.36, 169,037.94 and 74,827.48 is: 103,259.31
Step by Step Solution
- Step 1: Write the proportion equation
122,494.36 : 169,037.94 = 74,827.48 : x - Step 2: Convert to fraction form
122,494.36/169,037.94 = 74,827.48/x - Step 3: Cross multiply
122,494.36x = 169,037.94 × 74,827.48 - Step 4: Simplify right side
122,494.36x = 12,648,683,074.59 - Step 5: Solve for x
x = 12,648,683,074.59/122,494.36 - Step 6: Final answer
x = 103,259.31
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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.