Finding the Fourth Proportional to 186,319.76, 257,038.20 and 125,870.96
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Solution
The fourth proportional to 186,319.76, 257,038.20 and 125,870.96 is: 173,645.81
Step by Step Solution
- Step 1: Write the proportion equation
186,319.76 : 257,038.20 = 125,870.96 : x - Step 2: Convert to fraction form
186,319.76/257,038.20 = 125,870.96/x - Step 3: Cross multiply
186,319.76x = 257,038.20 × 125,870.96 - Step 4: Simplify right side
186,319.76x = 32,353,644,990.67 - Step 5: Solve for x
x = 32,353,644,990.67/186,319.76 - Step 6: Final answer
x = 173,645.81
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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.