Finding the Fourth Proportional to 140,102.13, 210,078.93 and 61,124.09
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Solution
The fourth proportional to 140,102.13, 210,078.93 and 61,124.09 is: 91,653.73
Step by Step Solution
- Step 1: Write the proportion equation
140,102.13 : 210,078.93 = 61,124.09 : x - Step 2: Convert to fraction form
140,102.13/210,078.93 = 61,124.09/x - Step 3: Cross multiply
140,102.13x = 210,078.93 × 61,124.09 - Step 4: Simplify right side
140,102.13x = 12,840,883,424.42 - Step 5: Solve for x
x = 12,840,883,424.42/140,102.13 - Step 6: Final answer
x = 91,653.73
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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.