Finding the Fourth Proportional to 102,539.36, 153,829.56 and 43,374.80
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Solution
The fourth proportional to 102,539.36, 153,829.56 and 43,374.80 is: 65,070.88
Step by Step Solution
- Step 1: Write the proportion equation
102,539.36 : 153,829.56 = 43,374.80 : x - Step 2: Convert to fraction form
102,539.36/153,829.56 = 43,374.80/x - Step 3: Cross multiply
102,539.36x = 153,829.56 × 43,374.80 - Step 4: Simplify right side
102,539.36x = 6,672,326,399.09 - Step 5: Solve for x
x = 6,672,326,399.09/102,539.36 - Step 6: Final answer
x = 65,070.88
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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.