Finding the Fourth Proportional to 187,120.83, 258,226.70 and 101,079.80
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Solution
The fourth proportional to 187,120.83, 258,226.70 and 101,079.80 is: 139,490.09
Step by Step Solution
- Step 1: Write the proportion equation
187,120.83 : 258,226.70 = 101,079.80 : x - Step 2: Convert to fraction form
187,120.83/258,226.70 = 101,079.80/x - Step 3: Cross multiply
187,120.83x = 258,226.70 × 101,079.80 - Step 4: Simplify right side
187,120.83x = 26,101,501,899.53 - Step 5: Solve for x
x = 26,101,501,899.53/187,120.83 - Step 6: Final answer
x = 139,490.09
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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.