Finding the Fourth Proportional to 100,907.13, 139,268.24 and 58,490.26
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Solution
The fourth proportional to 100,907.13, 139,268.24 and 58,490.26 is: 80,726.07
Step by Step Solution
- Step 1: Write the proportion equation
100,907.13 : 139,268.24 = 58,490.26 : x - Step 2: Convert to fraction form
100,907.13/139,268.24 = 58,490.26/x - Step 3: Cross multiply
100,907.13x = 139,268.24 × 58,490.26 - Step 4: Simplify right side
100,907.13x = 8,145,835,567.34 - Step 5: Solve for x
x = 8,145,835,567.34/100,907.13 - Step 6: Final answer
x = 80,726.07
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1.5x scale
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.