Finding the Fourth Proportional to 119,754.48, 165,258.18 and 66,038.70
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Solution
The fourth proportional to 119,754.48, 165,258.18 and 66,038.70 is: 91,131.75
Step by Step Solution
- Step 1: Write the proportion equation
119,754.48 : 165,258.18 = 66,038.70 : x - Step 2: Convert to fraction form
119,754.48/165,258.18 = 66,038.70/x - Step 3: Cross multiply
119,754.48x = 165,258.18 × 66,038.70 - Step 4: Simplify right side
119,754.48x = 10,913,435,371.57 - Step 5: Solve for x
x = 10,913,435,371.57/119,754.48 - Step 6: Final answer
x = 91,131.75
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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.