Finding the Fourth Proportional to 106,509.36, 146,983.40 and 58,762.70
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Solution
The fourth proportional to 106,509.36, 146,983.40 and 58,762.70 is: 81,092.78
Step by Step Solution
- Step 1: Write the proportion equation
106,509.36 : 146,983.40 = 58,762.70 : x - Step 2: Convert to fraction form
106,509.36/146,983.40 = 58,762.70/x - Step 3: Cross multiply
106,509.36x = 146,983.40 × 58,762.70 - Step 4: Simplify right side
106,509.36x = 8,637,140,410.45 - Step 5: Solve for x
x = 8,637,140,410.45/106,509.36 - Step 6: Final answer
x = 81,092.78
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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.