Finding the Fourth Proportional to 139,866.08, 209,886.62 and 56,760.08
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Solution
The fourth proportional to 139,866.08, 209,886.62 and 56,760.08 is: 85,175.63
Step by Step Solution
- Step 1: Write the proportion equation
139,866.08 : 209,886.62 = 56,760.08 : x - Step 2: Convert to fraction form
139,866.08/209,886.62 = 56,760.08/x - Step 3: Cross multiply
139,866.08x = 209,886.62 × 56,760.08 - Step 4: Simplify right side
139,866.08x = 11,913,181,342.13 - Step 5: Solve for x
x = 11,913,181,342.13/139,866.08 - Step 6: Final answer
x = 85,175.63
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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.