Finding the Fourth Proportional to 172,101.42, 258,144.84 and 70,887.06
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Solution
The fourth proportional to 172,101.42, 258,144.84 and 70,887.06 is: 106,327.59
Step by Step Solution
- Step 1: Write the proportion equation
172,101.42 : 258,144.84 = 70,887.06 : x - Step 2: Convert to fraction form
172,101.42/258,144.84 = 70,887.06/x - Step 3: Cross multiply
172,101.42x = 258,144.84 × 70,887.06 - Step 4: Simplify right side
172,101.42x = 18,299,128,761.77 - Step 5: Solve for x
x = 18,299,128,761.77/172,101.42 - Step 6: Final answer
x = 106,327.59
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1.5x scale
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.