Finding the Fourth Proportional to 105,134.94, 157,717.08 and 30,259.44
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Solution
The fourth proportional to 105,134.94, 157,717.08 and 30,259.44 is: 45,393.38
Step by Step Solution
- Step 1: Write the proportion equation
105,134.94 : 157,717.08 = 30,259.44 : x - Step 2: Convert to fraction form
105,134.94/157,717.08 = 30,259.44/x - Step 3: Cross multiply
105,134.94x = 157,717.08 × 30,259.44 - Step 4: Simplify right side
105,134.94x = 4,772,430,519.24 - Step 5: Solve for x
x = 4,772,430,519.24/105,134.94 - Step 6: Final answer
x = 45,393.38
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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.