Finding the Fourth Proportional to 134,646.80, 202,009.56 and 39,879.44
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Solution
The fourth proportional to 134,646.80, 202,009.56 and 39,879.44 is: 59,830.82
Step by Step Solution
- Step 1: Write the proportion equation
134,646.80 : 202,009.56 = 39,879.44 : x - Step 2: Convert to fraction form
134,646.80/202,009.56 = 39,879.44/x - Step 3: Cross multiply
134,646.80x = 202,009.56 × 39,879.44 - Step 4: Simplify right side
134,646.80x = 8,056,028,127.45 - Step 5: Solve for x
x = 8,056,028,127.45/134,646.80 - Step 6: Final answer
x = 59,830.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.