Finding the Fourth Proportional to 187,471.12, 258,710.16 and 102,588.18
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Solution
The fourth proportional to 187,471.12, 258,710.16 and 102,588.18 is: 141,571.70
Step by Step Solution
- Step 1: Write the proportion equation
187,471.12 : 258,710.16 = 102,588.18 : x - Step 2: Convert to fraction form
187,471.12/258,710.16 = 102,588.18/x - Step 3: Cross multiply
187,471.12x = 258,710.16 × 102,588.18 - Step 4: Simplify right side
187,471.12x = 26,540,604,461.91 - Step 5: Solve for x
x = 26,540,604,461.91/187,471.12 - Step 6: Final answer
x = 141,571.70
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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.