Finding the Fourth Proportional to 106,997.13, 147,703.73 and 70,720.43
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Solution
The fourth proportional to 106,997.13, 147,703.73 and 70,720.43 is: 97,625.70
Step by Step Solution
- Step 1: Write the proportion equation
106,997.13 : 147,703.73 = 70,720.43 : x - Step 2: Convert to fraction form
106,997.13/147,703.73 = 70,720.43/x - Step 3: Cross multiply
106,997.13x = 147,703.73 × 70,720.43 - Step 4: Simplify right side
106,997.13x = 10,445,670,206.08 - Step 5: Solve for x
x = 10,445,670,206.08/106,997.13 - Step 6: Final answer
x = 97,625.70
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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.