Finding the Fourth Proportional to 103,681.26, 143,080.35 and 58,969.26
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Solution
The fourth proportional to 103,681.26, 143,080.35 and 58,969.26 is: 81,377.70
Step by Step Solution
- Step 1: Write the proportion equation
103,681.26 : 143,080.35 = 58,969.26 : x - Step 2: Convert to fraction form
103,681.26/143,080.35 = 58,969.26/x - Step 3: Cross multiply
103,681.26x = 143,080.35 × 58,969.26 - Step 4: Simplify right side
103,681.26x = 8,437,342,360.04 - Step 5: Solve for x
x = 8,437,342,360.04/103,681.26 - Step 6: Final answer
x = 81,377.70
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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.