Finding the Fourth Proportional to 147,709.83, 221,564.75 and 117,988.50
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Solution
The fourth proportional to 147,709.83, 221,564.75 and 117,988.50 is: 176,982.75
Step by Step Solution
- Step 1: Write the proportion equation
147,709.83 : 221,564.75 = 117,988.50 : x - Step 2: Convert to fraction form
147,709.83/221,564.75 = 117,988.50/x - Step 3: Cross multiply
147,709.83x = 221,564.75 × 117,988.50 - Step 4: Simplify right side
147,709.83x = 26,142,091,915.43 - Step 5: Solve for x
x = 26,142,091,915.43/147,709.83 - Step 6: Final answer
x = 176,982.75
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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.