Finding the Fourth Proportional to 105,965.82, 146,232.95 and 58,221.99
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Solution
The fourth proportional to 105,965.82, 146,232.95 and 58,221.99 is: 80,346.41
Step by Step Solution
- Step 1: Write the proportion equation
105,965.82 : 146,232.95 = 58,221.99 : x - Step 2: Convert to fraction form
105,965.82/146,232.95 = 58,221.99/x - Step 3: Cross multiply
105,965.82x = 146,232.95 × 58,221.99 - Step 4: Simplify right side
105,965.82x = 8,513,973,061.46 - Step 5: Solve for x
x = 8,513,973,061.46/105,965.82 - Step 6: Final answer
x = 80,346.41
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1.5x scale
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.