Finding the Fourth Proportional to 106,989.13, 147,683.87 and 62,277.13
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Solution
The fourth proportional to 106,989.13, 147,683.87 and 62,277.13 is: 85,965.07
Step by Step Solution
- Step 1: Write the proportion equation
106,989.13 : 147,683.87 = 62,277.13 : x - Step 2: Convert to fraction form
106,989.13/147,683.87 = 62,277.13/x - Step 3: Cross multiply
106,989.13x = 147,683.87 × 62,277.13 - Step 4: Simplify right side
106,989.13x = 9,197,327,570.89 - Step 5: Solve for x
x = 9,197,327,570.89/106,989.13 - Step 6: Final answer
x = 85,965.07
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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.