Finding the Fourth Proportional to 106,430.44, 146,887.30 and 61,122.60
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Solution
The fourth proportional to 106,430.44, 146,887.30 and 61,122.60 is: 84,356.82
Step by Step Solution
- Step 1: Write the proportion equation
106,430.44 : 146,887.30 = 61,122.60 : x - Step 2: Convert to fraction form
106,430.44/146,887.30 = 61,122.60/x - Step 3: Cross multiply
106,430.44x = 146,887.30 × 61,122.60 - Step 4: Simplify right side
106,430.44x = 8,978,133,682.98 - Step 5: Solve for x
x = 8,978,133,682.98/106,430.44 - Step 6: Final answer
x = 84,356.82
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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.