Finding the Fourth Proportional to 157,657.70, 236,140.95 and 136,921.70
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Solution
The fourth proportional to 157,657.70, 236,140.95 and 136,921.70 is: 205,082.41
Step by Step Solution
- Step 1: Write the proportion equation
157,657.70 : 236,140.95 = 136,921.70 : x - Step 2: Convert to fraction form
157,657.70/236,140.95 = 136,921.70/x - Step 3: Cross multiply
157,657.70x = 236,140.95 × 136,921.70 - Step 4: Simplify right side
157,657.70x = 32,332,820,313.62 - Step 5: Solve for x
x = 32,332,820,313.62/157,657.70 - Step 6: Final answer
x = 205,082.41
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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.