Finding the Fourth Proportional to 118,372.99, 163,306.36 and 87,402.46
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Solution
The fourth proportional to 118,372.99, 163,306.36 and 87,402.46 is: 120,579.68
Step by Step Solution
- Step 1: Write the proportion equation
118,372.99 : 163,306.36 = 87,402.46 : x - Step 2: Convert to fraction form
118,372.99/163,306.36 = 87,402.46/x - Step 3: Cross multiply
118,372.99x = 163,306.36 × 87,402.46 - Step 4: Simplify right side
118,372.99x = 14,273,376,781.11 - Step 5: Solve for x
x = 14,273,376,781.11/118,372.99 - Step 6: Final answer
x = 120,579.68
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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.