Finding the Fourth Proportional to 121,641.12, 167,863.16 and 67,927.08
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Solution
The fourth proportional to 121,641.12, 167,863.16 and 67,927.08 is: 93,738.48
Step by Step Solution
- Step 1: Write the proportion equation
121,641.12 : 167,863.16 = 67,927.08 : x - Step 2: Convert to fraction form
121,641.12/167,863.16 = 67,927.08/x - Step 3: Cross multiply
121,641.12x = 167,863.16 × 67,927.08 - Step 4: Simplify right side
121,641.12x = 11,402,454,298.37 - Step 5: Solve for x
x = 11,402,454,298.37/121,641.12 - Step 6: Final answer
x = 93,738.48
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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.