Finding the Fourth Proportional to 158,533.68, 218,765.57 and 93,999.63
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Solution
The fourth proportional to 158,533.68, 218,765.57 and 93,999.63 is: 129,713.02
Step by Step Solution
- Step 1: Write the proportion equation
158,533.68 : 218,765.57 = 93,999.63 : x - Step 2: Convert to fraction form
158,533.68/218,765.57 = 93,999.63/x - Step 3: Cross multiply
158,533.68x = 218,765.57 × 93,999.63 - Step 4: Simplify right side
158,533.68x = 20,563,882,166.74 - Step 5: Solve for x
x = 20,563,882,166.74/158,533.68 - Step 6: Final answer
x = 129,713.02
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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.