Finding the Fourth Proportional to 143,756.08, 215,561.76 and 83,803.84
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Solution
The fourth proportional to 143,756.08, 215,561.76 and 83,803.84 is: 125,663.58
Step by Step Solution
- Step 1: Write the proportion equation
143,756.08 : 215,561.76 = 83,803.84 : x - Step 2: Convert to fraction form
143,756.08/215,561.76 = 83,803.84/x - Step 3: Cross multiply
143,756.08x = 215,561.76 × 83,803.84 - Step 4: Simplify right side
143,756.08x = 18,064,903,245.16 - Step 5: Solve for x
x = 18,064,903,245.16/143,756.08 - Step 6: Final answer
x = 125,663.58
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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.