Finding the Fourth Proportional to 105,964.45, 146,230.36 and 57,565.99
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Solution
The fourth proportional to 105,964.45, 146,230.36 and 57,565.99 is: 79,440.75
Step by Step Solution
- Step 1: Write the proportion equation
105,964.45 : 146,230.36 = 57,565.99 : x - Step 2: Convert to fraction form
105,964.45/146,230.36 = 57,565.99/x - Step 3: Cross multiply
105,964.45x = 146,230.36 × 57,565.99 - Step 4: Simplify right side
105,964.45x = 8,417,895,441.46 - Step 5: Solve for x
x = 8,417,895,441.46/105,964.45 - Step 6: Final answer
x = 79,440.75
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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.