Finding the Fourth Proportional to 148,379.19, 204,856.74 and 103,042.68
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Solution
The fourth proportional to 148,379.19, 204,856.74 and 103,042.68 is: 142,263.80
Step by Step Solution
- Step 1: Write the proportion equation
148,379.19 : 204,856.74 = 103,042.68 : x - Step 2: Convert to fraction form
148,379.19/204,856.74 = 103,042.68/x - Step 3: Cross multiply
148,379.19x = 204,856.74 × 103,042.68 - Step 4: Simplify right side
148,379.19x = 21,108,987,505.66 - Step 5: Solve for x
x = 21,108,987,505.66/148,379.19 - Step 6: Final answer
x = 142,263.80
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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.