Finding the Fourth Proportional to 135,656.68, 187,215.80 and 75,233.10
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Solution
The fourth proportional to 135,656.68, 187,215.80 and 75,233.10 is: 103,826.99
Step by Step Solution
- Step 1: Write the proportion equation
135,656.68 : 187,215.80 = 75,233.10 : x - Step 2: Convert to fraction form
135,656.68/187,215.80 = 75,233.10/x - Step 3: Cross multiply
135,656.68x = 187,215.80 × 75,233.10 - Step 4: Simplify right side
135,656.68x = 14,084,825,002.98 - Step 5: Solve for x
x = 14,084,825,002.98/135,656.68 - Step 6: Final answer
x = 103,826.99
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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.