Finding the Fourth Proportional to 113,913.68, 157,203.24 and 63,612.68
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Solution
The fourth proportional to 113,913.68, 157,203.24 and 63,612.68 is: 87,786.82
Step by Step Solution
- Step 1: Write the proportion equation
113,913.68 : 157,203.24 = 63,612.68 : x - Step 2: Convert to fraction form
113,913.68/157,203.24 = 63,612.68/x - Step 3: Cross multiply
113,913.68x = 157,203.24 × 63,612.68 - Step 4: Simplify right side
113,913.68x = 10,000,119,401.08 - Step 5: Solve for x
x = 10,000,119,401.08/113,913.68 - Step 6: Final answer
x = 87,786.82
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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.