Finding the Fourth Proportional to 112,349.79, 155,043.88 and 61,363.99
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Solution
The fourth proportional to 112,349.79, 155,043.88 and 61,363.99 is: 84,682.94
Step by Step Solution
- Step 1: Write the proportion equation
112,349.79 : 155,043.88 = 61,363.99 : x - Step 2: Convert to fraction form
112,349.79/155,043.88 = 61,363.99/x - Step 3: Cross multiply
112,349.79x = 155,043.88 × 61,363.99 - Step 4: Simplify right side
112,349.79x = 9,514,110,560.86 - Step 5: Solve for x
x = 9,514,110,560.86/112,349.79 - Step 6: Final answer
x = 84,682.94
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1.5x scale
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.