Finding the Fourth Proportional to 83,980.08, 125,779.68 and 65,108.88
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Solution
The fourth proportional to 83,980.08, 125,779.68 and 65,108.88 is: 97,515.67
Step by Step Solution
- Step 1: Write the proportion equation
83,980.08 : 125,779.68 = 65,108.88 : x - Step 2: Convert to fraction form
83,980.08/125,779.68 = 65,108.88/x - Step 3: Cross multiply
83,980.08x = 125,779.68 × 65,108.88 - Step 4: Simplify right side
83,980.08x = 8,189,374,091.56 - Step 5: Solve for x
x = 8,189,374,091.56/83,980.08 - Step 6: Final answer
x = 97,515.67
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1.5x scale
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.