Finding the Fourth Proportional to 126,907.40, 175,129.62 and 70,317.56
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Solution
The fourth proportional to 126,907.40, 175,129.62 and 70,317.56 is: 97,036.80
Step by Step Solution
- Step 1: Write the proportion equation
126,907.40 : 175,129.62 = 70,317.56 : x - Step 2: Convert to fraction form
126,907.40/175,129.62 = 70,317.56/x - Step 3: Cross multiply
126,907.40x = 175,129.62 × 70,317.56 - Step 4: Simplify right side
126,907.40x = 12,314,687,562.13 - Step 5: Solve for x
x = 12,314,687,562.13/126,907.40 - Step 6: Final answer
x = 97,036.80
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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.