Finding the Fourth Proportional to 106,858.80, 160,288.20 and 97,009.20
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Solution
The fourth proportional to 106,858.80, 160,288.20 and 97,009.20 is: 145,513.80
Step by Step Solution
- Step 1: Write the proportion equation
106,858.80 : 160,288.20 = 97,009.20 : x - Step 2: Convert to fraction form
106,858.80/160,288.20 = 97,009.20/x - Step 3: Cross multiply
106,858.80x = 160,288.20 × 97,009.20 - Step 4: Simplify right side
106,858.80x = 15,549,430,051.44 - Step 5: Solve for x
x = 15,549,430,051.44/106,858.80 - Step 6: Final answer
x = 145,513.80
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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.