Finding the Fourth Proportional to 119,866.16, 165,486.84 and 106,581.68
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Solution
The fourth proportional to 119,866.16, 165,486.84 and 106,581.68 is: 147,146.33
Step by Step Solution
- Step 1: Write the proportion equation
119,866.16 : 165,486.84 = 106,581.68 : x - Step 2: Convert to fraction form
119,866.16/165,486.84 = 106,581.68/x - Step 3: Cross multiply
119,866.16x = 165,486.84 × 106,581.68 - Step 4: Simplify right side
119,866.16x = 17,637,865,425.09 - Step 5: Solve for x
x = 17,637,865,425.09/119,866.16 - Step 6: Final answer
x = 147,146.33
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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.