Finding the Fourth Proportional to 187,853.55, 259,247.84 and 102,974.19
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Solution
The fourth proportional to 187,853.55, 259,247.84 and 102,974.19 is: 142,109.83
Step by Step Solution
- Step 1: Write the proportion equation
187,853.55 : 259,247.84 = 102,974.19 : x - Step 2: Convert to fraction form
187,853.55/259,247.84 = 102,974.19/x - Step 3: Cross multiply
187,853.55x = 259,247.84 × 102,974.19 - Step 4: Simplify right side
187,853.55x = 26,695,835,818.38 - Step 5: Solve for x
x = 26,695,835,818.38/187,853.55 - Step 6: Final answer
x = 142,109.83
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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.