Finding the Fourth Proportional to 100,268.08, 138,356.76 and 59,967.13
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Solution
The fourth proportional to 100,268.08, 138,356.76 and 59,967.13 is: 82,746.75
Step by Step Solution
- Step 1: Write the proportion equation
100,268.08 : 138,356.76 = 59,967.13 : x - Step 2: Convert to fraction form
100,268.08/138,356.76 = 59,967.13/x - Step 3: Cross multiply
100,268.08x = 138,356.76 × 59,967.13 - Step 4: Simplify right side
100,268.08x = 8,296,857,813.30 - Step 5: Solve for x
x = 8,296,857,813.30/100,268.08 - Step 6: Final answer
x = 82,746.75
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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.