Finding the Fourth Proportional to 121,312.60, 167,409.11 and 67,596.46
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Solution
The fourth proportional to 121,312.60, 167,409.11 and 67,596.46 is: 93,281.85
Step by Step Solution
- Step 1: Write the proportion equation
121,312.60 : 167,409.11 = 67,596.46 : x - Step 2: Convert to fraction form
121,312.60/167,409.11 = 67,596.46/x - Step 3: Cross multiply
121,312.60x = 167,409.11 × 67,596.46 - Step 4: Simplify right side
121,312.60x = 11,316,262,958.22 - Step 5: Solve for x
x = 11,316,262,958.22/121,312.60 - Step 6: Final answer
x = 93,281.85
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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.