Finding the Fourth Proportional to 160,192.80, 221,070.72 and 87,599.94
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Solution
The fourth proportional to 160,192.80, 221,070.72 and 87,599.94 is: 120,890.46
Step by Step Solution
- Step 1: Write the proportion equation
160,192.80 : 221,070.72 = 87,599.94 : x - Step 2: Convert to fraction form
160,192.80/221,070.72 = 87,599.94/x - Step 3: Cross multiply
160,192.80x = 221,070.72 × 87,599.94 - Step 4: Simplify right side
160,192.80x = 19,365,781,807.76 - Step 5: Solve for x
x = 19,365,781,807.76/160,192.80 - Step 6: Final answer
x = 120,890.46
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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.