Finding the Fourth Proportional to 160,407.75, 221,421.11 and 93,339.75
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Solution
The fourth proportional to 160,407.75, 221,421.11 and 93,339.75 is: 128,842.85
Step by Step Solution
- Step 1: Write the proportion equation
160,407.75 : 221,421.11 = 93,339.75 : x - Step 2: Convert to fraction form
160,407.75/221,421.11 = 93,339.75/x - Step 3: Cross multiply
160,407.75x = 221,421.11 × 93,339.75 - Step 4: Simplify right side
160,407.75x = 20,667,391,052.12 - Step 5: Solve for x
x = 20,667,391,052.12/160,407.75 - Step 6: Final answer
x = 128,842.85
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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.