Finding the Fourth Proportional to 99,216.21, 136,863.84 and 62,851.06
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Solution
The fourth proportional to 99,216.21, 136,863.84 and 62,851.06 is: 86,699.92
Step by Step Solution
- Step 1: Write the proportion equation
99,216.21 : 136,863.84 = 62,851.06 : x - Step 2: Convert to fraction form
99,216.21/136,863.84 = 62,851.06/x - Step 3: Cross multiply
99,216.21x = 136,863.84 × 62,851.06 - Step 4: Simplify right side
99,216.21x = 8,602,037,419.67 - Step 5: Solve for x
x = 8,602,037,419.67/99,216.21 - Step 6: Final answer
x = 86,699.92
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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.