Finding the Fourth Proportional to 129,803.84, 179,125.28 and 73,214.40
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Solution
The fourth proportional to 129,803.84, 179,125.28 and 73,214.40 is: 101,033.61
Step by Step Solution
- Step 1: Write the proportion equation
129,803.84 : 179,125.28 = 73,214.40 : x - Step 2: Convert to fraction form
129,803.84/179,125.28 = 73,214.40/x - Step 3: Cross multiply
129,803.84x = 179,125.28 × 73,214.40 - Step 4: Simplify right side
129,803.84x = 13,114,549,900.03 - Step 5: Solve for x
x = 13,114,549,900.03/129,803.84 - Step 6: Final answer
x = 101,033.61
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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.