Finding the Fourth Proportional to 129,718.68, 179,011.44 and 70,102.68
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Solution
The fourth proportional to 129,718.68, 179,011.44 and 70,102.68 is: 96,741.52
Step by Step Solution
- Step 1: Write the proportion equation
129,718.68 : 179,011.44 = 70,102.68 : x - Step 2: Convert to fraction form
129,718.68/179,011.44 = 70,102.68/x - Step 3: Cross multiply
129,718.68x = 179,011.44 × 70,102.68 - Step 4: Simplify right side
129,718.68x = 12,549,181,694.66 - Step 5: Solve for x
x = 12,549,181,694.66/129,718.68 - Step 6: Final answer
x = 96,741.52
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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.