Finding the Fourth Proportional to 134,416.26, 185,417.10 and 84,027.78
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Solution
The fourth proportional to 134,416.26, 185,417.10 and 84,027.78 is: 115,909.99
Step by Step Solution
- Step 1: Write the proportion equation
134,416.26 : 185,417.10 = 84,027.78 : x - Step 2: Convert to fraction form
134,416.26/185,417.10 = 84,027.78/x - Step 3: Cross multiply
134,416.26x = 185,417.10 × 84,027.78 - Step 4: Simplify right side
134,416.26x = 15,580,187,287.04 - Step 5: Solve for x
x = 15,580,187,287.04/134,416.26 - Step 6: Final answer
x = 115,909.99
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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.