Finding the Fourth Proportional to 125,385.18, 187,956.81 and 42,233.82
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Solution
The fourth proportional to 125,385.18, 187,956.81 and 42,233.82 is: 63,309.99
Step by Step Solution
- Step 1: Write the proportion equation
125,385.18 : 187,956.81 = 42,233.82 : x - Step 2: Convert to fraction form
125,385.18/187,956.81 = 42,233.82/x - Step 3: Cross multiply
125,385.18x = 187,956.81 × 42,233.82 - Step 4: Simplify right side
125,385.18x = 7,938,134,081.31 - Step 5: Solve for x
x = 7,938,134,081.31/125,385.18 - Step 6: Final answer
x = 63,309.99
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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.