Finding the Fourth Proportional to 121,092.48, 167,132.16 and 70,807.68
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Solution
The fourth proportional to 121,092.48, 167,132.16 and 70,807.68 is: 97,728.95
Step by Step Solution
- Step 1: Write the proportion equation
121,092.48 : 167,132.16 = 70,807.68 : x - Step 2: Convert to fraction form
121,092.48/167,132.16 = 70,807.68/x - Step 3: Cross multiply
121,092.48x = 167,132.16 × 70,807.68 - Step 4: Simplify right side
121,092.48x = 11,834,240,502.99 - Step 5: Solve for x
x = 11,834,240,502.99/121,092.48 - Step 6: Final answer
x = 97,728.95
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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.