Finding the Fourth Proportional to 106,530.21, 159,661.67 and 56,486.79
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Solution
The fourth proportional to 106,530.21, 159,661.67 and 56,486.79 is: 84,659.32
Step by Step Solution
- Step 1: Write the proportion equation
106,530.21 : 159,661.67 = 56,486.79 : x - Step 2: Convert to fraction form
106,530.21/159,661.67 = 56,486.79/x - Step 3: Cross multiply
106,530.21x = 159,661.67 × 56,486.79 - Step 4: Simplify right side
106,530.21x = 9,018,774,941.91 - Step 5: Solve for x
x = 9,018,774,941.91/106,530.21 - Step 6: Final answer
x = 84,659.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.