Finding the Fourth Proportional to 109,201.16, 163,800.74 and 30,315.40
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Solution
The fourth proportional to 109,201.16, 163,800.74 and 30,315.40 is: 45,472.82
Step by Step Solution
- Step 1: Write the proportion equation
109,201.16 : 163,800.74 = 30,315.40 : x - Step 2: Convert to fraction form
109,201.16/163,800.74 = 30,315.40/x - Step 3: Cross multiply
109,201.16x = 163,800.74 × 30,315.40 - Step 4: Simplify right side
109,201.16x = 4,965,684,953.40 - Step 5: Solve for x
x = 4,965,684,953.40/109,201.16 - Step 6: Final answer
x = 45,472.82
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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.