Finding the Fourth Proportional to 106,053.12, 146,353.68 and 58,309.49
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Solution
The fourth proportional to 106,053.12, 146,353.68 and 58,309.49 is: 80,467.31
Step by Step Solution
- Step 1: Write the proportion equation
106,053.12 : 146,353.68 = 58,309.49 : x - Step 2: Convert to fraction form
106,053.12/146,353.68 = 58,309.49/x - Step 3: Cross multiply
106,053.12x = 146,353.68 × 58,309.49 - Step 4: Simplify right side
106,053.12x = 8,533,808,806.31 - Step 5: Solve for x
x = 8,533,808,806.31/106,053.12 - Step 6: Final answer
x = 80,467.31
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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.