Finding the Fourth Proportional to 119,217.60, 164,451.87 and 74,427.84
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Solution
The fourth proportional to 119,217.60, 164,451.87 and 74,427.84 is: 102,667.71
Step by Step Solution
- Step 1: Write the proportion equation
119,217.60 : 164,451.87 = 74,427.84 : x - Step 2: Convert to fraction form
119,217.60/164,451.87 = 74,427.84/x - Step 3: Cross multiply
119,217.60x = 164,451.87 × 74,427.84 - Step 4: Simplify right side
119,217.60x = 12,239,797,468.06 - Step 5: Solve for x
x = 12,239,797,468.06/119,217.60 - Step 6: Final answer
x = 102,667.71
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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.