Finding the Fourth Proportional to 121,239.24, 167,310.04 and 70,281.53
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Solution
The fourth proportional to 121,239.24, 167,310.04 and 70,281.53 is: 96,988.45
Step by Step Solution
- Step 1: Write the proportion equation
121,239.24 : 167,310.04 = 70,281.53 : x - Step 2: Convert to fraction form
121,239.24/167,310.04 = 70,281.53/x - Step 3: Cross multiply
121,239.24x = 167,310.04 × 70,281.53 - Step 4: Simplify right side
121,239.24x = 11,758,805,595.56 - Step 5: Solve for x
x = 11,758,805,595.56/121,239.24 - Step 6: Final answer
x = 96,988.45
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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.