Finding the Fourth Proportional to 128,271.88, 192,412.14 and 34,779.88
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Solution
The fourth proportional to 128,271.88, 192,412.14 and 34,779.88 is: 52,170.99
Step by Step Solution
- Step 1: Write the proportion equation
128,271.88 : 192,412.14 = 34,779.88 : x - Step 2: Convert to fraction form
128,271.88/192,412.14 = 34,779.88/x - Step 3: Cross multiply
128,271.88x = 192,412.14 × 34,779.88 - Step 4: Simplify right side
128,271.88x = 6,692,071,139.74 - Step 5: Solve for x
x = 6,692,071,139.74/128,271.88 - Step 6: Final answer
x = 52,170.99
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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.