Finding the Fourth Proportional to 125,313.35, 187,678.15 and 75,282.99
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Solution
The fourth proportional to 125,313.35, 187,678.15 and 75,282.99 is: 112,749.14
Step by Step Solution
- Step 1: Write the proportion equation
125,313.35 : 187,678.15 = 75,282.99 : x - Step 2: Convert to fraction form
125,313.35/187,678.15 = 75,282.99/x - Step 3: Cross multiply
125,313.35x = 187,678.15 × 75,282.99 - Step 4: Simplify right side
125,313.35x = 14,128,971,397.67 - Step 5: Solve for x
x = 14,128,971,397.67/125,313.35 - Step 6: Final answer
x = 112,749.14
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.