Finding the Fourth Proportional to 154,565.09, 213,372.86 and 103,611.13
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Solution
The fourth proportional to 154,565.09, 213,372.86 and 103,611.13 is: 143,032.32
Step by Step Solution
- Step 1: Write the proportion equation
154,565.09 : 213,372.86 = 103,611.13 : x - Step 2: Convert to fraction form
154,565.09/213,372.86 = 103,611.13/x - Step 3: Cross multiply
154,565.09x = 213,372.86 × 103,611.13 - Step 4: Simplify right side
154,565.09x = 22,107,803,135.93 - Step 5: Solve for x
x = 22,107,803,135.93/154,565.09 - Step 6: Final answer
x = 143,032.32
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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.