Finding the Fourth Proportional to 148,955.21, 205,545.97 and 87,691.67
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Solution
The fourth proportional to 148,955.21, 205,545.97 and 87,691.67 is: 121,007.31
Step by Step Solution
- Step 1: Write the proportion equation
148,955.21 : 205,545.97 = 87,691.67 : x - Step 2: Convert to fraction form
148,955.21/205,545.97 = 87,691.67/x - Step 3: Cross multiply
148,955.21x = 205,545.97 × 87,691.67 - Step 4: Simplify right side
148,955.21x = 18,024,669,371.07 - Step 5: Solve for x
x = 18,024,669,371.07/148,955.21 - Step 6: Final answer
x = 121,007.31
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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.