Finding the Fourth Proportional to 160,244.05, 221,130.12 and 87,645.78
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Solution
The fourth proportional to 160,244.05, 221,130.12 and 87,645.78 is: 120,947.52
Step by Step Solution
- Step 1: Write the proportion equation
160,244.05 : 221,130.12 = 87,645.78 : x - Step 2: Convert to fraction form
160,244.05/221,130.12 = 87,645.78/x - Step 3: Cross multiply
160,244.05x = 221,130.12 × 87,645.78 - Step 4: Simplify right side
160,244.05x = 19,381,120,743.24 - Step 5: Solve for x
x = 19,381,120,743.24/160,244.05 - Step 6: Final answer
x = 120,947.52
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1.5x scale
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.