Finding the Fourth Proportional to 118,223.91, 163,209.20 and 91,305.99
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Solution
The fourth proportional to 118,223.91, 163,209.20 and 91,305.99 is: 126,048.76
Step by Step Solution
- Step 1: Write the proportion equation
118,223.91 : 163,209.20 = 91,305.99 : x - Step 2: Convert to fraction form
118,223.91/163,209.20 = 91,305.99/x - Step 3: Cross multiply
118,223.91x = 163,209.20 × 91,305.99 - Step 4: Simplify right side
118,223.91x = 14,901,977,126.58 - Step 5: Solve for x
x = 14,901,977,126.58/118,223.91 - Step 6: Final answer
x = 126,048.76
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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.