Finding the Fourth Proportional to 107,078.76, 147,701.61 and 68,888.00
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Solution
The fourth proportional to 107,078.76, 147,701.61 and 68,888.00 is: 95,022.29
Step by Step Solution
- Step 1: Write the proportion equation
107,078.76 : 147,701.61 = 68,888.00 : x - Step 2: Convert to fraction form
107,078.76/147,701.61 = 68,888.00/x - Step 3: Cross multiply
107,078.76x = 147,701.61 × 68,888.00 - Step 4: Simplify right side
107,078.76x = 10,174,868,878.93 - Step 5: Solve for x
x = 10,174,868,878.93/107,078.76 - Step 6: Final answer
x = 95,022.29
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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.