Finding the Fourth Proportional to 121,653.20, 167,844.68 and 70,656.08
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Solution
The fourth proportional to 121,653.20, 167,844.68 and 70,656.08 is: 97,484.05
Step by Step Solution
- Step 1: Write the proportion equation
121,653.20 : 167,844.68 = 70,656.08 : x - Step 2: Convert to fraction form
121,653.20/167,844.68 = 70,656.08/x - Step 3: Cross multiply
121,653.20x = 167,844.68 × 70,656.08 - Step 4: Simplify right side
121,653.20x = 11,859,247,137.65 - Step 5: Solve for x
x = 11,859,247,137.65/121,653.20 - Step 6: Final answer
x = 97,484.05
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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.