Finding the Fourth Proportional to 121,502.74, 167,677.08 and 76,176.46
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Solution
The fourth proportional to 121,502.74, 167,677.08 and 76,176.46 is: 105,125.58
Step by Step Solution
- Step 1: Write the proportion equation
121,502.74 : 167,677.08 = 76,176.46 : x - Step 2: Convert to fraction form
121,502.74/167,677.08 = 76,176.46/x - Step 3: Cross multiply
121,502.74x = 167,677.08 × 76,176.46 - Step 4: Simplify right side
121,502.74x = 12,773,046,377.54 - Step 5: Solve for x
x = 12,773,046,377.54/121,502.74 - Step 6: Final answer
x = 105,125.58
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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.