Finding the Fourth Proportional to 140,089.48, 193,319.66 and 76,427.26
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Solution
The fourth proportional to 140,089.48, 193,319.66 and 76,427.26 is: 105,467.53
Step by Step Solution
- Step 1: Write the proportion equation
140,089.48 : 193,319.66 = 76,427.26 : x - Step 2: Convert to fraction form
140,089.48/193,319.66 = 76,427.26/x - Step 3: Cross multiply
140,089.48x = 193,319.66 × 76,427.26 - Step 4: Simplify right side
140,089.48x = 14,774,891,917.93 - Step 5: Solve for x
x = 14,774,891,917.93/140,089.48 - Step 6: Final answer
x = 105,467.53
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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.