Finding the Fourth Proportional to 116,488.59, 160,812.45 and 76,263.99
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Solution
The fourth proportional to 116,488.59, 160,812.45 and 76,263.99 is: 105,282.41
Step by Step Solution
- Step 1: Write the proportion equation
116,488.59 : 160,812.45 = 76,263.99 : x - Step 2: Convert to fraction form
116,488.59/160,812.45 = 76,263.99/x - Step 3: Cross multiply
116,488.59x = 160,812.45 × 76,263.99 - Step 4: Simplify right side
116,488.59x = 12,264,199,078.68 - Step 5: Solve for x
x = 12,264,199,078.68/116,488.59 - Step 6: Final answer
x = 105,282.41
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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.