Finding the Fourth Proportional to 121,718.36, 182,305.28 and 70,364.12
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Solution
The fourth proportional to 121,718.36, 182,305.28 and 70,364.12 is: 105,388.78
Step by Step Solution
- Step 1: Write the proportion equation
121,718.36 : 182,305.28 = 70,364.12 : x - Step 2: Convert to fraction form
121,718.36/182,305.28 = 70,364.12/x - Step 3: Cross multiply
121,718.36x = 182,305.28 × 70,364.12 - Step 4: Simplify right side
121,718.36x = 12,827,749,335.21 - Step 5: Solve for x
x = 12,827,749,335.21/121,718.36 - Step 6: Final answer
x = 105,388.78
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.