Finding the Fourth Proportional to 188,521.84, 260,160.14 and 103,638.91
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Solution
The fourth proportional to 188,521.84, 260,160.14 and 103,638.91 is: 143,021.70
Step by Step Solution
- Step 1: Write the proportion equation
188,521.84 : 260,160.14 = 103,638.91 : x - Step 2: Convert to fraction form
188,521.84/260,160.14 = 103,638.91/x - Step 3: Cross multiply
188,521.84x = 260,160.14 × 103,638.91 - Step 4: Simplify right side
188,521.84x = 26,962,713,335.05 - Step 5: Solve for x
x = 26,962,713,335.05/188,521.84 - Step 6: Final answer
x = 143,021.70
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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.